From 39ad3b89467d6de12cbb9d08ccd77d331c0d1f9e Mon Sep 17 00:00:00 2001 From: WorksButNotTested <62701594+WorksButNotTested@users.noreply.github.com> Date: Wed, 28 Apr 2021 09:25:26 +0100 Subject: Frida persistent (#880) * Added x64 support for persistent mode (function call only), in-memory teest cases and complog * Review changes, fix NeverZero and code to parse the .text section of the main executable. Excluded ranges TBC * Various minor fixes and finished support for AFL_INST_LIBS * Review changes Co-authored-by: Your Name --- frida_mode/include/util.h | 6 ++++++ 1 file changed, 6 insertions(+) create mode 100644 frida_mode/include/util.h (limited to 'frida_mode/include/util.h') diff --git a/frida_mode/include/util.h b/frida_mode/include/util.h new file mode 100644 index 00000000..5b4ea76b --- /dev/null +++ b/frida_mode/include/util.h @@ -0,0 +1,6 @@ +#include "frida-gum.h" + +guint64 util_read_address(char *key); + +guint64 util_read_num(char *key); + -- cgit 1.4.1 From 3a0d4fe0d0a585d152a59ca4601d1981cedbf113 Mon Sep 17 00:00:00 2001 From: WorksButNotTested <62701594+WorksButNotTested@users.noreply.github.com> Date: Wed, 28 Apr 2021 18:26:19 +0100 Subject: Bumped warnings up to the max and fixed remaining issues (#890) Co-authored-by: Your Name --- frida_mode/GNUmakefile | 64 +++++++++++++++++++++++++----- frida_mode/include/complog.h | 5 +++ frida_mode/include/instrument.h | 11 +++-- frida_mode/include/interceptor.h | 5 +++ frida_mode/include/lib.h | 5 +++ frida_mode/include/persistent.h | 8 ++-- frida_mode/include/prefetch.h | 5 +++ frida_mode/include/ranges.h | 5 +++ frida_mode/include/stalker.h | 5 +++ frida_mode/include/util.h | 8 ++++ frida_mode/src/complog/complog.c | 3 ++ frida_mode/src/complog/complog_x64.c | 50 ++++++++++------------- frida_mode/src/instrument/instrument.c | 9 +++-- frida_mode/src/interceptor.c | 2 +- frida_mode/src/main.c | 7 ++-- frida_mode/src/persistent/persistent.c | 3 ++ frida_mode/src/persistent/persistent_x64.c | 2 +- frida_mode/src/ranges.c | 19 ++++----- frida_mode/test/png/GNUmakefile | 1 - 19 files changed, 153 insertions(+), 64 deletions(-) (limited to 'frida_mode/include/util.h') diff --git a/frida_mode/GNUmakefile b/frida_mode/GNUmakefile index 6b193806..e317237a 100644 --- a/frida_mode/GNUmakefile +++ b/frida_mode/GNUmakefile @@ -3,9 +3,25 @@ ROOT:=$(shell realpath $(PWD)..)/ INC_DIR:=$(PWD)include/ SRC_DIR:=$(PWD)src/ INCLUDES:=$(wildcard $(INC_DIR)*.h) -SOURCES:=$(wildcard $(SRC_DIR)**/*.c) $(wildcard $(SRC_DIR)*.c) BUILD_DIR:=$(PWD)build/ -CFLAGS+=-fPIC -D_GNU_SOURCE -Wno-prio-ctor-dtor -fcommon -Wl,--allow-multiple-definition +OBJ_DIR:=$(BUILD_DIR)obj/ +SOURCES:=$(wildcard $(SRC_DIR)**/*.c) $(wildcard $(SRC_DIR)*.c) +OBJS:=$(foreach src,$(SOURCES),$(OBJ_DIR)$(notdir $(patsubst %.c, %.o, $(src)))) +CFLAGS+=-fPIC \ + -D_GNU_SOURCE \ + -D_FORTIFY_SOURCE=2 \ + -Werror \ + -Wall \ + -Wextra \ + -Wpointer-arith \ + -g \ + -O3 \ + -funroll-loops \ + +LDFLAGS+=-shared \ + -lpthread \ + -lresolv \ + -ldl \ FRIDA_BUILD_DIR:=$(BUILD_DIR)frida/ FRIDA_TRACE:=$(BUILD_DIR)afl-frida-trace.so @@ -36,7 +52,8 @@ GUM_DEVKIT_TARBALL:=$(FRIDA_BUILD_DIR)$(GUM_DEVKIT_FILENAME) GUM_DEVIT_LIBRARY=$(FRIDA_BUILD_DIR)libfrida-gum.a GUM_DEVIT_HEADER=$(FRIDA_BUILD_DIR)frida-gum.h -TEST_BUILD_DIR:=$(BUILD_DIR)test/ +AFL_COMPILER_RT_SRC:=$(ROOT)instrumentation/afl-compiler-rt.o.c +AFL_COMPILER_RT_OBJ:=$(OBJ_DIR)afl-compiler-rt.o .PHONY: all clean format @@ -49,6 +66,9 @@ all: $(FRIDA_TRACE) $(BUILD_DIR): mkdir -p $(BUILD_DIR) +$(OBJ_DIR): | $(BUILD_DIR) + mkdir -p $@ + $(FRIDA_BUILD_DIR): | $(BUILD_DIR) mkdir -p $@ @@ -61,18 +81,40 @@ $(GUM_DEVIT_LIBRARY): | $(GUM_DEVKIT_TARBALL) $(GUM_DEVIT_HEADER): | $(GUM_DEVKIT_TARBALL) tar Jxvf $(GUM_DEVKIT_TARBALL) -C $(FRIDA_BUILD_DIR) -$(FRIDA_TRACE): $(GUM_DEVIT_LIBRARY) $(GUM_DEVIT_HEADER) $(SOURCES) $(QEMU_INC_API) Makefile | $(BUILD_DIR) - $(CC) -shared \ +$(AFL_COMPILER_RT_OBJ): $(AFL_COMPILER_RT_SRC) + $(CC) \ $(CFLAGS) \ - -o $@ \ - $(SOURCES) \ - $(GUM_DEVIT_LIBRARY) \ - -I $(FRIDA_BUILD_DIR) \ -I $(ROOT) \ -I $(ROOT)include \ + -Wno-unused-parameter \ + -Wno-sign-compare \ + -Wno-unused-function \ + -Wno-prio-ctor-dtor \ + -Wno-unused-result \ + -o $@ \ + -c $< + + +define BUILD_SOURCE = +$(2): $(1) GNUmakefile | $(OBJ_DIR) + $(CC) \ + $(CFLAGS) \ + -I $(ROOT)include \ + -I $(FRIDA_BUILD_DIR) \ -I $(INC_DIR) \ - $(ROOT)instrumentation/afl-compiler-rt.o.c -# -lpthread -ldl -lresolv -lelf + -c $1 \ + -o $2 +endef + +$(foreach src,$(SOURCES),$(eval $(call BUILD_SOURCE,$(src),$(OBJ_DIR)$(notdir $(patsubst %.c, %.o, $(src)))))) + +$(FRIDA_TRACE): $(GUM_DEVIT_LIBRARY) $(GUM_DEVIT_HEADER) $(OBJS) $(AFL_COMPILER_RT_OBJ) GNUmakefile | $(BUILD_DIR) + $(CC) \ + -o $@ \ + $(OBJS) \ + $(GUM_DEVIT_LIBRARY) \ + $(AFL_COMPILER_RT_OBJ) \ + $(LDFLAGS) \ cp -v $(FRIDA_TRACE) $(ROOT) diff --git a/frida_mode/include/complog.h b/frida_mode/include/complog.h index 094b7b93..1c1adb6d 100644 --- a/frida_mode/include/complog.h +++ b/frida_mode/include/complog.h @@ -1,3 +1,6 @@ +#ifndef _COMPLOG_H +#define _COMPLOG_H + extern struct cmp_map *__afl_cmp_map; void complog_init(void); @@ -7,3 +10,5 @@ void complog_instrument(const cs_insn *instr, GumStalkerIterator *iterator); gboolean complog_is_readable(void *addr, size_t size); +#endif + diff --git a/frida_mode/include/instrument.h b/frida_mode/include/instrument.h index 1b6c6bba..03fd33e5 100644 --- a/frida_mode/include/instrument.h +++ b/frida_mode/include/instrument.h @@ -1,10 +1,13 @@ +#ifndef _INSTRUMENT_H +#define _INSTRUMENT_H + #include "frida-gum.h" #include "config.h" -extern uint64_t __thread previous_pc; -extern uint8_t *__afl_area_ptr; -extern uint32_t __afl_map_size; +extern __thread uint64_t previous_pc; +extern uint8_t * __afl_area_ptr; +extern uint32_t __afl_map_size; void instrument_init(void); @@ -16,3 +19,5 @@ gboolean instrument_is_coverage_optimize_supported(void); void instrument_coverage_optimize(const cs_insn * instr, GumStalkerOutput *output); +#endif + diff --git a/frida_mode/include/interceptor.h b/frida_mode/include/interceptor.h index 49c0630a..0ff754a4 100644 --- a/frida_mode/include/interceptor.h +++ b/frida_mode/include/interceptor.h @@ -1,6 +1,11 @@ +#ifndef _INTERCEPTOR_H +#define _INTERCEPTOR_H + #include "frida-gum.h" void intercept(void *address, gpointer replacement, gpointer user_data); void unintercept(void *address); void unintercept_self(void); +#endif + diff --git a/frida_mode/include/lib.h b/frida_mode/include/lib.h index 1dc426a2..237aecb0 100644 --- a/frida_mode/include/lib.h +++ b/frida_mode/include/lib.h @@ -1,3 +1,6 @@ +#ifndef _LIB_H +#define _LIB_H + #include "frida-gum.h" void lib_init(void); @@ -6,3 +9,5 @@ guint64 lib_get_text_base(void); guint64 lib_get_text_limit(void); +#endif + diff --git a/frida_mode/include/persistent.h b/frida_mode/include/persistent.h index 017c26c7..e58c5301 100644 --- a/frida_mode/include/persistent.h +++ b/frida_mode/include/persistent.h @@ -1,6 +1,5 @@ #ifndef _PERSISTENT_H - #define _PERSISTENT_H #include "frida-gum.h" @@ -17,9 +16,9 @@ extern int __afl_persistent_loop(unsigned int max_cnt); extern unsigned int * __afl_fuzz_len; extern unsigned char *__afl_fuzz_ptr; -guint64 persistent_start; -guint64 persistent_count; -afl_persistent_hook_fn hook; +extern guint64 persistent_start; +extern guint64 persistent_count; +extern afl_persistent_hook_fn hook; void persistent_init(void); @@ -29,3 +28,4 @@ gboolean persistent_is_supported(void); void persistent_prologue(GumStalkerOutput *output); #endif + diff --git a/frida_mode/include/prefetch.h b/frida_mode/include/prefetch.h index 110f717f..8f0cee68 100644 --- a/frida_mode/include/prefetch.h +++ b/frida_mode/include/prefetch.h @@ -1,6 +1,11 @@ +#ifndef _PREFETCH_H +#define _PREFETCH_H + #include "frida-gum.h" void prefetch_init(void); void prefetch_write(void *addr); void prefetch_read(void); +#endif + diff --git a/frida_mode/include/ranges.h b/frida_mode/include/ranges.h index a021f35c..f652eb8a 100644 --- a/frida_mode/include/ranges.h +++ b/frida_mode/include/ranges.h @@ -1,6 +1,11 @@ +#ifndef _RANGES_H +#define _RANGES_H + #include "frida-gum.h" void ranges_init(void); gboolean range_is_excluded(gpointer address); +#endif + diff --git a/frida_mode/include/stalker.h b/frida_mode/include/stalker.h index 1962eec9..1f1abb6b 100644 --- a/frida_mode/include/stalker.h +++ b/frida_mode/include/stalker.h @@ -1,3 +1,6 @@ +#ifndef _STALKER_H +#define _STALKER_H + #include "frida-gum.h" void stalker_init(void); @@ -6,3 +9,5 @@ void stalker_start(void); void stalker_pause(void); void stalker_resume(void); +#endif + diff --git a/frida_mode/include/util.h b/frida_mode/include/util.h index 5b4ea76b..afd0b9c1 100644 --- a/frida_mode/include/util.h +++ b/frida_mode/include/util.h @@ -1,6 +1,14 @@ +#ifndef _UTIL_H +#define _UTIL_H + #include "frida-gum.h" +#define UNUSED_PARAMETER(x) (void)(x) +#define IGNORED_RERURN(x) (void)!(x) + guint64 util_read_address(char *key); guint64 util_read_num(char *key); +#endif + diff --git a/frida_mode/src/complog/complog.c b/frida_mode/src/complog/complog.c index 3b679a5c..1857ea3b 100644 --- a/frida_mode/src/complog/complog.c +++ b/frida_mode/src/complog/complog.c @@ -2,6 +2,7 @@ #include "debug.h" #include "cmplog.h" +#include "util.h" extern struct cmp_map *__afl_cmp_map; @@ -10,8 +11,10 @@ static GArray *complog_ranges = NULL; static gboolean complog_range(const GumRangeDetails *details, gpointer user_data) { + UNUSED_PARAMETER(user_data); GumMemoryRange range = *details->range; g_array_append_val(complog_ranges, range); + return TRUE; } diff --git a/frida_mode/src/complog/complog_x64.c b/frida_mode/src/complog/complog_x64.c index 253ec041..28010e7f 100644 --- a/frida_mode/src/complog/complog_x64.c +++ b/frida_mode/src/complog/complog_x64.c @@ -4,6 +4,7 @@ #include "cmplog.h" #include "complog.h" +#include "util.h" #if defined(__x86_64__) @@ -148,7 +149,27 @@ static guint64 complog_read_mem(GumX64CpuContext *ctx, x86_op_mem *mem) { } -static void complog_handle_call(GumCpuContext *context, guint64 target) { +static guint64 cmplog_get_operand_value(GumCpuContext *context, + complog_ctx_t *ctx) { + + switch (ctx->type) { + + case X86_OP_REG: + return complog_read_reg(context, ctx->reg); + case X86_OP_IMM: + return ctx->imm; + case X86_OP_MEM: + return complog_read_mem(context, &ctx->mem); + default: + FATAL("Invalid operand type: %d\n", ctx->type); + + } + +} + +static void complog_call_callout(GumCpuContext *context, gpointer user_data) { + + UNUSED_PARAMETER(user_data); guint64 address = complog_read_reg(context, X86_REG_RIP); guint64 rdi = complog_read_reg(context, X86_REG_RDI); @@ -179,33 +200,6 @@ static void complog_handle_call(GumCpuContext *context, guint64 target) { } -static guint64 cmplog_get_operand_value(GumCpuContext *context, - complog_ctx_t *ctx) { - - switch (ctx->type) { - - case X86_OP_REG: - return complog_read_reg(context, ctx->reg); - case X86_OP_IMM: - return ctx->imm; - case X86_OP_MEM: - return complog_read_mem(context, &ctx->mem); - default: - FATAL("Invalid operand type: %d\n", ctx->type); - - } - -} - -static void complog_call_callout(GumCpuContext *context, gpointer user_data) { - - complog_ctx_t *ctx = (complog_ctx_t *)user_data; - - guint64 target = cmplog_get_operand_value(context, ctx); - complog_handle_call(context, target); - -} - static void complog_instrument_put_operand(complog_ctx_t *ctx, cs_x86_op * operand) { diff --git a/frida_mode/src/instrument/instrument.c b/frida_mode/src/instrument/instrument.c index 81080bee..3806136a 100644 --- a/frida_mode/src/instrument/instrument.c +++ b/frida_mode/src/instrument/instrument.c @@ -11,17 +11,18 @@ #include "prefetch.h" #include "ranges.h" #include "stalker.h" +#include "util.h" static gboolean tracing = false; static gboolean optimize = false; -static gboolean strict = false; static GumStalkerTransformer *transformer = NULL; -uint64_t __thread previous_pc = 0; +__thread uint64_t previous_pc = 0; __attribute__((hot)) static void on_basic_block(GumCpuContext *context, gpointer user_data) { + UNUSED_PARAMETER(context); /* * This function is performance critical as it is called to instrument every * basic block. By moving our print buffer to a global, we avoid it affecting @@ -44,7 +45,7 @@ __attribute__((hot)) static void on_basic_block(GumCpuContext *context, "x, previous_pc: 0x%016" G_GINT64_MODIFIER "x\n", current_pc, previous_pc); - write(STDOUT_FILENO, buffer, len + 1); + IGNORED_RERURN(write(STDOUT_FILENO, buffer, len + 1)); } @@ -72,6 +73,8 @@ __attribute__((hot)) static void on_basic_block(GumCpuContext *context, static void instr_basic_block(GumStalkerIterator *iterator, GumStalkerOutput *output, gpointer user_data) { + UNUSED_PARAMETER(user_data); + const cs_insn *instr; gboolean begin = TRUE; while (gum_stalker_iterator_next(iterator, &instr)) { diff --git a/frida_mode/src/interceptor.c b/frida_mode/src/interceptor.c index 8d41b075..d2802752 100644 --- a/frida_mode/src/interceptor.c +++ b/frida_mode/src/interceptor.c @@ -10,7 +10,7 @@ void intercept(void *address, gpointer replacement, gpointer user_data) { gum_interceptor_begin_transaction(interceptor); GumReplaceReturn ret = gum_interceptor_replace(interceptor, address, replacement, user_data); - if (ret != GUM_ATTACH_OK) { FATAL("gum_interceptor_attach: %d", ret); } + if (ret != GUM_REPLACE_OK) { FATAL("gum_interceptor_attach: %d", ret); } gum_interceptor_end_transaction(interceptor); } diff --git a/frida_mode/src/main.c b/frida_mode/src/main.c index f712a8c0..11cf041c 100644 --- a/frida_mode/src/main.c +++ b/frida_mode/src/main.c @@ -21,6 +21,7 @@ #include "prefetch.h" #include "ranges.h" #include "stalker.h" +#include "util.h" #ifdef __APPLE__ extern mach_port_t mach_task_self(); @@ -36,8 +37,6 @@ typedef int *(*main_fn_t)(int argc, char **argv, char **envp); static main_fn_t main_fn = NULL; -static GumMemoryRange code_range = {0}; - extern void __afl_manual_init(); static int on_fork(void) { @@ -55,6 +54,8 @@ static void on_main_os(int argc, char **argv, char **envp) { #else static void on_main_os(int argc, char **argv, char **envp) { + UNUSED_PARAMETER(argc); + /* Personality doesn't affect the current process, it only takes effect on * evec */ int persona = personality(ADDR_NO_RANDOMIZE); @@ -97,7 +98,7 @@ static int *on_main(int argc, char **argv, char **envp) { /* Child here */ previous_pc = 0; stalker_resume(); - main_fn(argc, argv, envp); + return main_fn(argc, argv, envp); } diff --git a/frida_mode/src/persistent/persistent.c b/frida_mode/src/persistent/persistent.c index 34e4093e..fe3a1d20 100644 --- a/frida_mode/src/persistent/persistent.c +++ b/frida_mode/src/persistent/persistent.c @@ -9,6 +9,9 @@ #include "util.h" int __afl_sharedmem_fuzzing = 0; +afl_persistent_hook_fn hook = NULL; +guint64 persistent_start = 0; +guint64 persistent_count = 0; void persistent_init(void) { diff --git a/frida_mode/src/persistent/persistent_x64.c b/frida_mode/src/persistent/persistent_x64.c index 0cabbf24..5b8493b2 100644 --- a/frida_mode/src/persistent/persistent_x64.c +++ b/frida_mode/src/persistent/persistent_x64.c @@ -231,7 +231,7 @@ static int instrument_afl_persistent_loop_func(void) { } -static int instrument_afl_persistent_loop(GumX86Writer *cw) { +static void instrument_afl_persistent_loop(GumX86Writer *cw) { gum_x86_writer_put_lea_reg_reg_offset(cw, GUM_REG_RSP, GUM_REG_RSP, -(GUM_RED_ZONE_SIZE)); diff --git a/frida_mode/src/ranges.c b/frida_mode/src/ranges.c index 6fcbd258..e3f09f9e 100644 --- a/frida_mode/src/ranges.c +++ b/frida_mode/src/ranges.c @@ -5,6 +5,7 @@ #include "lib.h" #include "ranges.h" #include "stalker.h" +#include "util.h" #define MAX_RANGES 20 @@ -167,6 +168,7 @@ gint range_sort(gconstpointer a, gconstpointer b) { static gboolean print_ranges_callback(const GumRangeDetails *details, gpointer user_data) { + UNUSED_PARAMETER(user_data); if (details->file == NULL) { OKF("MAP - 0x%016" G_GINT64_MODIFIER "x - 0x%016" G_GINT64_MODIFIER "X", @@ -190,7 +192,7 @@ static gboolean print_ranges_callback(const GumRangeDetails *details, static void print_ranges(char *key, GArray *ranges) { OKF("Range: %s Length: %d", key, ranges->len); - for (int i = 0; i < ranges->len; i++) { + for (guint i = 0; i < ranges->len; i++) { GumMemoryRange *curr = &g_array_index(ranges, GumMemoryRange, i); GumAddress curr_limit = curr->base_address + curr->size; @@ -345,10 +347,10 @@ static GArray *intersect_ranges(GArray *a, GArray *b) { result = g_array_new(false, false, sizeof(GumMemoryRange)); - for (int i = 0; i < a->len; i++) { + for (guint i = 0; i < a->len; i++) { ra = &g_array_index(a, GumMemoryRange, i); - for (int j = 0; j < b->len; j++) { + for (guint j = 0; j < b->len; j++) { rb = &g_array_index(b, GumMemoryRange, j); @@ -377,11 +379,11 @@ static GArray *subtract_ranges(GArray *a, GArray *b) { result = g_array_new(false, false, sizeof(GumMemoryRange)); - for (int i = 0; i < a->len; i++) { + for (guint i = 0; i < a->len; i++) { ra = &g_array_index(a, GumMemoryRange, i); ral = ra->base_address + ra->size; - for (int j = 0; j < b->len; j++) { + for (guint j = 0; j < b->len; j++) { rb = &g_array_index(b, GumMemoryRange, j); @@ -453,7 +455,7 @@ static GArray *merge_ranges(GArray *a) { rp = g_array_index(a, GumMemoryRange, 0); - for (int i = 1; i < a->len; i++) { + for (guint i = 1; i < a->len; i++) { r = &g_array_index(a, GumMemoryRange, i); @@ -535,7 +537,7 @@ void ranges_init(void) { stalker = stalker_get(); - for (int i = 0; i < ranges->len; i++) { + for (guint i = 0; i < ranges->len; i++) { r = &g_array_index(ranges, GumMemoryRange, i); gum_stalker_exclude(stalker, r); @@ -551,12 +553,11 @@ void ranges_init(void) { gboolean range_is_excluded(gpointer address) { - int i; GumAddress test = GUM_ADDRESS(address); if (ranges == NULL) { return false; } - for (i = 0; i < ranges->len; i++) { + for (guint i = 0; i < ranges->len; i++) { GumMemoryRange *curr = &g_array_index(ranges, GumMemoryRange, i); GumAddress curr_limit = curr->base_address + curr->size; diff --git a/frida_mode/test/png/GNUmakefile b/frida_mode/test/png/GNUmakefile index c381f5ab..7de3e85a 100644 --- a/frida_mode/test/png/GNUmakefile +++ b/frida_mode/test/png/GNUmakefile @@ -80,7 +80,6 @@ $(TEST_BIN): $(HARNESS_OBJ) $(PNGTEST_OBJ) $(LIBPNG_LIB) -o $@ \ $(HARNESS_OBJ) $(PNGTEST_OBJ) $(LIBPNG_LIB) \ -lz \ - $(TEST_LDFLAGS) clean: rm -rf $(BUILD_DIR) -- cgit 1.4.1 From 14178141dcdc1a81ea4f4461790ec87f60606985 Mon Sep 17 00:00:00 2001 From: WorksButNotTested <62701594+WorksButNotTested@users.noreply.github.com> Date: Thu, 27 May 2021 09:49:34 +0100 Subject: Frida (#940) * Added re2 test * Added libpcap test * Fix validation of setting of ADDR_NO_RANDOMIZE * Added support for printing original and instrumented code Co-authored-by: Your Name --- frida_mode/include/instrument.h | 3 + frida_mode/include/util.h | 2 +- frida_mode/src/instrument/instrument.c | 45 +- frida_mode/src/instrument/instrument_debug.c | 128 +++ frida_mode/src/main.c | 3 +- frida_mode/src/ranges.c | 67 +- frida_mode/test/libpcap/GNUmakefile | 188 ++++ frida_mode/test/libpcap/Makefile | 1143 ++++++++++++++++++++++ frida_mode/test/libpcap/aflpp_qemu_driver_hook.c | 97 ++ frida_mode/test/libpcap/get_symbol_addr.py | 36 + frida_mode/test/re2/GNUmakefile | 170 ++++ frida_mode/test/re2/Makefile | 22 + frida_mode/test/re2/aflpp_qemu_driver_hook.c | 97 ++ frida_mode/test/re2/get_symbol_addr.py | 36 + 14 files changed, 2014 insertions(+), 23 deletions(-) create mode 100644 frida_mode/src/instrument/instrument_debug.c create mode 100644 frida_mode/test/libpcap/GNUmakefile create mode 100644 frida_mode/test/libpcap/Makefile create mode 100644 frida_mode/test/libpcap/aflpp_qemu_driver_hook.c create mode 100755 frida_mode/test/libpcap/get_symbol_addr.py create mode 100644 frida_mode/test/re2/GNUmakefile create mode 100644 frida_mode/test/re2/Makefile create mode 100644 frida_mode/test/re2/aflpp_qemu_driver_hook.c create mode 100755 frida_mode/test/re2/get_symbol_addr.py (limited to 'frida_mode/include/util.h') diff --git a/frida_mode/include/instrument.h b/frida_mode/include/instrument.h index 03fd33e5..75ee6396 100644 --- a/frida_mode/include/instrument.h +++ b/frida_mode/include/instrument.h @@ -19,5 +19,8 @@ gboolean instrument_is_coverage_optimize_supported(void); void instrument_coverage_optimize(const cs_insn * instr, GumStalkerOutput *output); +void instrument_debug_start(uint64_t address, GumStalkerOutput *output); +void instrument_debug_instruction(uint64_t address, uint16_t size); +void instrument_debug_end(GumStalkerOutput *output); #endif diff --git a/frida_mode/include/util.h b/frida_mode/include/util.h index afd0b9c1..7b443b5e 100644 --- a/frida_mode/include/util.h +++ b/frida_mode/include/util.h @@ -4,7 +4,7 @@ #include "frida-gum.h" #define UNUSED_PARAMETER(x) (void)(x) -#define IGNORED_RERURN(x) (void)!(x) +#define IGNORED_RETURN(x) (void)!(x) guint64 util_read_address(char *key); diff --git a/frida_mode/src/instrument/instrument.c b/frida_mode/src/instrument/instrument.c index 67eadc3f..f21849a6 100644 --- a/frida_mode/src/instrument/instrument.c +++ b/frida_mode/src/instrument/instrument.c @@ -47,7 +47,7 @@ __attribute__((hot)) static void on_basic_block(GumCpuContext *context, "x, previous_pc: 0x%016" G_GINT64_MODIFIER "x\n", current_pc, previous_pc); - IGNORED_RERURN(write(STDOUT_FILENO, buffer, len + 1)); + IGNORED_RETURN(write(STDOUT_FILENO, buffer, len + 1)); } @@ -79,17 +79,48 @@ static void instr_basic_block(GumStalkerIterator *iterator, const cs_insn *instr; gboolean begin = TRUE; + gboolean excluded; + while (gum_stalker_iterator_next(iterator, &instr)) { if (instr->address == entry_start) { entry_prologue(iterator, output); } if (instr->address == persistent_start) { persistent_prologue(output); } - if (begin) { + /* + * Until we reach AFL_ENTRYPOINT (assumed to be main if not specified) or + * AFL_FRIDA_PERSISTENT_ADDR (if specified), we don't mark our ranges + * excluded as we wish to remain inside stalker at all times so that we can + * instrument our entry point and persistent loop (if present). This allows + * the user to exclude ranges which would be traversed between main and the + * AFL_ENTRYPOINT, but which they don't want included in their coverage + * information when fuzzing. + * + * Since we have no means to discard the instrumented copies of blocks + * (setting the trust threshold simply causes a new copy to be made on each + * execution), we instead ensure that we honour the additional + * instrumentation requested (e.g. coverage, asan and complog) when a block + * is compiled no matter where we are during initialization. We will end up + * re-using these blocks if the code under test calls a block which is also + * used during initialization. + * + * Coverage data generated during initialization isn't a problem since the + * map is zeroed each time the target is forked or each time the persistent + * loop is run. + * + * Lastly, we don't enable pre-fetching back to the parent until we reach + * our AFL_ENTRYPOINT, since it is not until then that we start the + * fork-server and thus start executing in the child. + */ + excluded = range_is_excluded(GSIZE_TO_POINTER(instr->address)); + if (unlikely(begin)) { + + instrument_debug_start(instr->address, output); prefetch_write(GSIZE_TO_POINTER(instr->address)); - if (!range_is_excluded(GSIZE_TO_POINTER(instr->address))) { - if (optimize) { + if (likely(!excluded)) { + + if (likely(optimize)) { instrument_coverage_optimize(instr, output); @@ -106,7 +137,9 @@ static void instr_basic_block(GumStalkerIterator *iterator, } - if (!range_is_excluded(GSIZE_TO_POINTER(instr->address))) { + instrument_debug_instruction(instr->address, instr->size); + + if (likely(!excluded)) { asan_instrument(instr, iterator); cmplog_instrument(instr, iterator); @@ -117,6 +150,8 @@ static void instr_basic_block(GumStalkerIterator *iterator, } + instrument_debug_end(output); + } void instrument_init(void) { diff --git a/frida_mode/src/instrument/instrument_debug.c b/frida_mode/src/instrument/instrument_debug.c new file mode 100644 index 00000000..3a554ad0 --- /dev/null +++ b/frida_mode/src/instrument/instrument_debug.c @@ -0,0 +1,128 @@ +#include +#include +#include + +#include "frida-gum.h" + +#include "util.h" + +#ifdef FRIDA_DEBUG + +static gpointer instrument_gen_start = NULL; + +static void instrument_debug(char *format, ...) { + + va_list ap; + char buffer[4096] = {0}; + + va_start(ap, format); + + vsnprintf(buffer, sizeof(buffer) - 1, format, ap); + va_end(ap); + + IGNORED_RETURN(write(STDOUT_FILENO, buffer, sizeof(buffer))); + +} + +static void instrument_disasm(guint8 *code, guint size) { + + csh capstone; + cs_err err; + cs_insn *insn; + size_t count, i; + + err = cs_open(GUM_DEFAULT_CS_ARCH, + GUM_DEFAULT_CS_MODE | GUM_DEFAULT_CS_ENDIAN, &capstone); + g_assert(err == CS_ERR_OK); + + count = cs_disasm(capstone, code, size, GPOINTER_TO_SIZE(code), 0, &insn); + g_assert(insn != NULL); + + for (i = 0; i != count; i++) { + + instrument_debug("\t0x%" G_GINT64_MODIFIER "x\t%s %s\n", insn[i].address, + insn[i].mnemonic, insn[i].op_str); + + } + + cs_free(insn, count); + + cs_close(&capstone); + +} + +static gpointer instrument_cur(GumStalkerOutput *output) { + + #if defined(__i386__) || defined(__x86_64__) + return gum_x86_writer_cur(output->writer.x86); + #elif defined(__aarch64__) + return gum_arm64_writer_cur(output->writer.arm64); + #elif defined(__arm__) + return gum_arm_writer_cur(output->writer.arm); + #else + #error "Unsupported architecture" + #endif + +} + +void instrument_debug_start(uint64_t address, GumStalkerOutput *output) { + + GumDebugSymbolDetails details; + + instrument_gen_start = instrument_cur(output); + + if (gum_symbol_details_from_address(GSIZE_TO_POINTER(address), &details)) { + + instrument_debug("\n\n***\n\nCreating block for 0x%" G_GINT64_MODIFIER + "x (%s!%s):\n", + address, details.module_name, details.symbol_name); + + } else { + + instrument_debug( + "\n\n***\n\nCreating block for 0x%" G_GINT64_MODIFIER "x:\n", address); + + } + +} + +void instrument_debug_instruction(uint64_t address, uint16_t size) { + + uint8_t *start = (uint8_t *)GSIZE_TO_POINTER(address); + instrument_disasm(start, size); + +} + +void instrument_debug_end(GumStalkerOutput *output) { + + gpointer instrument_gen_end = instrument_cur(output); + uint16_t size = GPOINTER_TO_SIZE(instrument_gen_end) - + GPOINTER_TO_SIZE(instrument_gen_start); + + instrument_debug("\nGenerated block %p\n", instrument_gen_start); + instrument_disasm(instrument_gen_start, size); + +} + +#else +void instrument_debug_start(void *address) { + + UNUSED_PARAMETER(address); + +} + +void instrument_debug_instruction(uint64_t address, uint16_t size) { + + UNUSED_PARAMETER(address); + UNUSED_PARAMETER(size); + +} + +void instrument_debug_end(GumStalkerOutput *output) { + + UNUSED_PARAMETER(output); + +} + +#endif + diff --git a/frida_mode/src/main.c b/frida_mode/src/main.c index 21073cbe..e8015905 100644 --- a/frida_mode/src/main.c +++ b/frida_mode/src/main.c @@ -1,3 +1,4 @@ +#include #include #include @@ -58,10 +59,10 @@ static void on_main_os(int argc, char **argv, char **envp) { static void on_main_os(int argc, char **argv, char **envp) { UNUSED_PARAMETER(argc); - /* Personality doesn't affect the current process, it only takes effect on * evec */ int persona = personality(ADDR_NO_RANDOMIZE); + if (persona == -1) { WARNF("Failed to set ADDR_NO_RANDOMIZE: %d", errno); } if ((persona & ADDR_NO_RANDOMIZE) == 0) { execvpe(argv[0], argv, envp); } GumInterceptor *interceptor = gum_interceptor_obtain(); diff --git a/frida_mode/src/ranges.c b/frida_mode/src/ranges.c index e3f09f9e..aa140708 100644 --- a/frida_mode/src/ranges.c +++ b/frida_mode/src/ranges.c @@ -480,15 +480,40 @@ static GArray *merge_ranges(GArray *a) { } +static gboolean exclude_ranges_callback(const GumRangeDetails *details, + gpointer user_data) { + + UNUSED_PARAMETER(user_data); + gchar * name; + gboolean found; + GumStalker *stalker; + if (details->file == NULL) { return TRUE; } + name = g_path_get_basename(details->file->path); + + found = (g_strcmp0(name, "afl-frida-trace.so") == 0); + g_free(name); + if (!found) { return TRUE; } + + stalker = stalker_get(); + gum_stalker_exclude(stalker, details->range); + + return FALSE; + +} + +static void ranges_exclude_self(void) { + + gum_process_enumerate_ranges(GUM_PAGE_EXECUTE, exclude_ranges_callback, NULL); + +} + void ranges_init(void) { - GumMemoryRange ri; - GArray * step1; - GArray * step2; - GArray * step3; - GArray * step4; - GumMemoryRange *r; - GumStalker * stalker; + GumMemoryRange ri; + GArray * step1; + GArray * step2; + GArray * step3; + GArray * step4; if (getenv("AFL_FRIDA_DEBUG_MAPS") != NULL) { @@ -535,20 +560,14 @@ void ranges_init(void) { ranges = merge_ranges(step4); print_ranges("final", ranges); - stalker = stalker_get(); - - for (guint i = 0; i < ranges->len; i++) { - - r = &g_array_index(ranges, GumMemoryRange, i); - gum_stalker_exclude(stalker, r); - - } - g_array_free(step4, TRUE); g_array_free(step3, TRUE); g_array_free(step2, TRUE); g_array_free(step1, TRUE); + /* *NEVER* stalk the stalker, only bad things will ever come of this! */ + ranges_exclude_self(); + } gboolean range_is_excluded(gpointer address) { @@ -572,3 +591,19 @@ gboolean range_is_excluded(gpointer address) { } +void ranges_exclude() { + + GumMemoryRange *r; + GumStalker * stalker = stalker_get(); + + OKF("Excluding ranges"); + + for (guint i = 0; i < ranges->len; i++) { + + r = &g_array_index(ranges, GumMemoryRange, i); + gum_stalker_exclude(stalker, r); + + } + +} + diff --git a/frida_mode/test/libpcap/GNUmakefile b/frida_mode/test/libpcap/GNUmakefile new file mode 100644 index 00000000..e30f2049 --- /dev/null +++ b/frida_mode/test/libpcap/GNUmakefile @@ -0,0 +1,188 @@ +PWD:=$(shell pwd)/ +ROOT:=$(shell realpath $(PWD)../../..)/ +BUILD_DIR:=$(PWD)build/ + +AFLPP_DRIVER_HOOK_SRC=$(PWD)aflpp_qemu_driver_hook.c +AFLPP_DRIVER_HOOK_OBJ=$(BUILD_DIR)aflpp_qemu_driver_hook.so + +LIBPCAP_BUILD_DIR:=$(BUILD_DIR)libpcap/ +HARNESS_BUILD_DIR:=$(BUILD_DIR)harness/ +PCAPTEST_BUILD_DIR:=$(BUILD_DIR)libpcaptest/ +TCPDUMP_BUILD_DIR:=$(BUILD_DIR)tcpdump/ + +LIBPCAP_PATCH_URL:=https://raw.githubusercontent.com/google/fuzzbench/master/benchmarks/libpcap_fuzz_both/patch.diff +LIBPCAP_PATCH_FILE:=$(LIBPCAP_BUILD_DIR)patch.diff +LIBPCAP_URL:=https://github.com/the-tcpdump-group/libpcap.git +LIBPCAP_DIR:=$(LIBPCAP_BUILD_DIR)libpcap/ +LIBPCAP_CMAKEFILE:=$(LIBPCAP_DIR)CMakeLists.txt +LIBPCAP_MAKEFILE:=$(LIBPCAP_DIR)Makefile +LIBPCAP_LIB:=$(LIBPCAP_DIR)libpcap.a + +HARNESS_FILE:=$(HARNESS_BUILD_DIR)StandaloneFuzzTargetMain.c +HARNESS_OBJ:=$(HARNESS_BUILD_DIR)StandaloneFuzzTargetMain.o +HARNESS_URL:="https://raw.githubusercontent.com/llvm/llvm-project/main/compiler-rt/lib/fuzzer/standalone/StandaloneFuzzTargetMain.c" + +PCAPTEST_SRC_DIR:=$(LIBPCAP_DIR)testprogs/fuzz/ +PCAPTEST_FILE:=$(PCAPTEST_SRC_DIR)fuzz_both.c +PCAPTEST_OBJ:=$(PCAPTEST_BUILD_DIR)fuzz_both.o + +TCPDUMP_URL:=https://github.com/the-tcpdump-group/tcpdump.git +TCPDUMP_TESTS_DIR:=$(TCPDUMP_BUILD_DIR)tests/ + +CFLAGS += -fpermissive + +LDFLAGS += -lpthread + +TEST_BIN:=$(BUILD_DIR)test +ifeq "$(shell uname)" "Darwin" +TEST_BIN_LDFLAGS:=-undefined dynamic_lookup +endif + +AFLPP_DRIVER_DUMMY_INPUT:=$(TCPDUMP_TESTS_DIR)in + +QEMU_OUT:=$(BUILD_DIR)qemu-out +FRIDA_OUT:=$(BUILD_DIR)frida-out + +ifndef ARCH + +ARCH=$(shell uname -m) +ifeq "$(ARCH)" "aarch64" + ARCH:=arm64 +endif + +ifeq "$(ARCH)" "i686" + ARCH:=x86 +endif +endif + +AFL_QEMU_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x4000000000) + +ifeq "$(ARCH)" "aarch64" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x0000aaaaaaaaa000) +endif + +ifeq "$(ARCH)" "x86_64" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x0000555555554000) +endif + +ifeq "$(ARCH)" "x86" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x56555000) +endif + +.PHONY: all clean qemu frida hook + +all: $(TEST_BIN) + make -C $(ROOT)frida_mode/ + +32: + CXXFLAGS="-m32" LDFLAGS="-m32" ARCH="x86" make all + +$(BUILD_DIR): + mkdir -p $@ + +######### HARNESS ######## +$(HARNESS_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(HARNESS_FILE): | $(HARNESS_BUILD_DIR) + wget -O $@ $(HARNESS_URL) + +$(HARNESS_OBJ): $(HARNESS_FILE) + $(CC) $(CXXFLAGS) $(LDFLAGS) -o $@ -c $< + +######### PCAPTEST ######## + +$(PCAPTEST_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(PCAPTEST_FILE): | $(LIBPCAP_CMAKEFILE) + +$(PCAPTEST_OBJ): $(PCAPTEST_FILE) | $(PCAPTEST_BUILD_DIR) + $(CC) $(CFLAGS) $(LDFLAGS) -I $(LIBPCAP_DIR) -o $@ -c $< + +######### LIBPCAP ######## + +$(LIBPCAP_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(LIBPCAP_PATCH_FILE): | $(LIBPCAP_BUILD_DIR) + wget -O $@ $(LIBPCAP_PATCH_URL) + +$(LIBPCAP_CMAKEFILE): $(LIBPCAP_PATCH_FILE) | $(LIBPCAP_BUILD_DIR) + git clone --depth 1 $(LIBPCAP_URL) $(LIBPCAP_DIR) + git apply $(LIBPCAP_PATCH_FILE) + +$(LIBPCAP_MAKEFILE): $(LIBPCAP_CMAKEFILE) + cd $(LIBPCAP_DIR) && cmake . + +$(LIBPCAP_LIB): $(LIBPCAP_MAKEFILE) $(LIBPCAP_PATCH_FILE) + make -C $(LIBPCAP_DIR) + +######## TCPDUMP ###### + +$(TCPDUMP_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(TCPDUMP_TESTS_DIR): | $(TCPDUMP_BUILD_DIR) + git clone --depth=1 $(TCPDUMP_URL) $(TCPDUMP_BUILD_DIR) + +######### TEST ######## + +$(TEST_BIN): $(HARNESS_OBJ) $(PCAPTEST_OBJ) $(LIBPCAP_LIB) + $(CXX) \ + $(CFLAGS) \ + -o $@ \ + $(HARNESS_OBJ) $(PCAPTEST_OBJ) $(LIBPCAP_LIB) \ + -lz \ + $(LDFLAGS) \ + $(TEST_BIN_LDFLAGS) \ + +########## HOOK ######## + +$(AFLPP_DRIVER_HOOK_OBJ): $(AFLPP_DRIVER_HOOK_SRC) | $(BUILD_DIR) + $(CC) -shared $(CFLAGS) $(LDFLAGS) $< -o $@ + +########## DUMMY ####### + +$(AFLPP_DRIVER_DUMMY_INPUT): | $(TCPDUMP_TESTS_DIR) + truncate -s 1M $@ + +###### TEST DATA ####### + +hook: $(AFLPP_DRIVER_HOOK_OBJ) + +clean: + rm -rf $(BUILD_DIR) + +qemu: $(TEST_BIN) $(AFLPP_DRIVER_HOOK_OBJ) $(AFLPP_DRIVER_DUMMY_INPUT) | $(TCPDUMP_TESTS_DIR) + AFL_QEMU_PERSISTENT_HOOK=$(AFLPP_DRIVER_HOOK_OBJ) \ + AFL_ENTRYPOINT=$(AFL_QEMU_PERSISTENT_ADDR) \ + AFL_QEMU_PERSISTENT_ADDR=$(AFL_QEMU_PERSISTENT_ADDR) \ + AFL_QEMU_PERSISTENT_GPR=1 \ + $(ROOT)afl-fuzz \ + -D \ + -V 30 \ + -Q \ + -i $(TCPDUMP_TESTS_DIR) \ + -o $(QEMU_OUT) \ + -- \ + $(TEST_BIN) $(AFLPP_DRIVER_DUMMY_INPUT) + +frida: $(TEST_BIN) $(AFLPP_DRIVER_HOOK_OBJ) $(AFLPP_DRIVER_DUMMY_INPUT) | $(TCPDUMP_TESTS_DIR) + AFL_FRIDA_PERSISTENT_HOOK=$(AFLPP_DRIVER_HOOK_OBJ) \ + AFL_FRIDA_PERSISTENT_ADDR=$(AFL_FRIDA_PERSISTENT_ADDR) \ + AFL_ENTRYPOINT=$(AFL_FRIDA_PERSISTENT_ADDR) \ + $(ROOT)afl-fuzz \ + -D \ + -V 30 \ + -O \ + -i $(TCPDUMP_TESTS_DIR) \ + -o $(FRIDA_OUT) \ + -- \ + $(TEST_BIN) $(AFLPP_DRIVER_DUMMY_INPUT) + +debug: + gdb \ + --ex 'set environment LD_PRELOAD=$(ROOT)afl-frida-trace.so' \ + --ex 'set disassembly-flavor intel' \ + --args $(TEST_BIN) $(AFLPP_DRIVER_DUMMY_INPUT) diff --git a/frida_mode/test/libpcap/Makefile b/frida_mode/test/libpcap/Makefile new file mode 100644 index 00000000..31cacb67 --- /dev/null +++ b/frida_mode/test/libpcap/Makefile @@ -0,0 +1,1143 @@ +# CMAKE generated file: DO NOT EDIT! +# Generated by "Unix Makefiles" Generator, CMake Version 3.16 + +# Default target executed when no arguments are given to make. +default_target: all + +.PHONY : default_target + +# Allow only one "make -f Makefile2" at a time, but pass parallelism. +.NOTPARALLEL: + + +#============================================================================= +# Special targets provided by cmake. + +# Disable implicit rules so canonical targets will work. +.SUFFIXES: + + +# Remove some rules from gmake that .SUFFIXES does not remove. +SUFFIXES = + +.SUFFIXES: .hpux_make_needs_suffix_list + + +# Suppress display of executed commands. +$(VERBOSE).SILENT: + + +# A target that is always out of date. +cmake_force: + +.PHONY : cmake_force + +#============================================================================= +# Set environment variables for the build. + +# The shell in which to execute make rules. +SHELL = /bin/sh + +# The CMake executable. +CMAKE_COMMAND = /usr/bin/cmake + +# The command to remove a file. +RM = /usr/bin/cmake -E remove -f + +# Escaping for special characters. +EQUALS = = + +# The top-level source directory on which CMake was run. +CMAKE_SOURCE_DIR = 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r11, r12, r13, r14, + r15; + + union { + + uint64_t rip; + uint64_t pc; + + }; + + union { + + uint64_t rsp; + uint64_t sp; + + }; + + union { + + uint64_t rflags; + uint64_t flags; + + }; + + uint8_t zmm_regs[32][64]; + +}; + +void afl_persistent_hook(struct x86_64_regs *regs, uint64_t guest_base, + uint8_t *input_buf, uint32_t input_buf_len) { + + memcpy((void *)regs->rdi, input_buf, input_buf_len); + regs->rsi = input_buf_len; + +} + +#elif defined(__i386__) + +struct x86_regs { + + uint32_t eax, ebx, ecx, edx, edi, esi, ebp; + + union { + + uint32_t eip; + uint32_t pc; + + }; + + union { + + uint32_t esp; + uint32_t sp; + + }; + + union { + + uint32_t eflags; + uint32_t flags; + + }; + + uint8_t xmm_regs[8][16]; + +}; + +void afl_persistent_hook(struct x86_regs *regs, uint64_t guest_base, + uint8_t *input_buf, uint32_t input_buf_len) { + + void **esp = (void **)regs->esp; + void * arg1 = esp[1]; + void **arg2 = &esp[2]; + memcpy(arg1, input_buf, input_buf_len); + *arg2 = (void *)input_buf_len; + +} + +#else + #pragma error "Unsupported architecture" +#endif + +int afl_persistent_hook_init(void) { + + // 1 for shared memory input (faster), 0 for normal input (you have to use + // read(), input_buf will be NULL) + return 1; + +} + diff --git a/frida_mode/test/libpcap/get_symbol_addr.py b/frida_mode/test/libpcap/get_symbol_addr.py new file mode 100755 index 00000000..1c46e010 --- /dev/null +++ b/frida_mode/test/libpcap/get_symbol_addr.py @@ -0,0 +1,36 @@ +#!/usr/bin/python3 +import argparse +from elftools.elf.elffile import ELFFile + +def process_file(file, symbol, base): + with open(file, 'rb') as f: + elf = ELFFile(f) + symtab = elf.get_section_by_name('.symtab') + mains = symtab.get_symbol_by_name(symbol) + if len(mains) != 1: + print ("Failed to find main") + return 1 + + main_addr = mains[0]['st_value'] + main = base + main_addr + print ("0x%016x" % main) + return 0 + +def hex_value(x): + return int(x, 16) + +def main(): + parser = argparse.ArgumentParser(description='Process some integers.') + parser.add_argument('-f', '--file', dest='file', type=str, + help='elf file name', required=True) + parser.add_argument('-s', '--symbol', dest='symbol', type=str, + help='symbol name', required=True) + parser.add_argument('-b', '--base', dest='base', type=hex_value, + help='elf base address', required=True) + + args = parser.parse_args() + return process_file (args.file, args.symbol, args.base) + +if __name__ == "__main__": + ret = main() + exit(ret) diff --git a/frida_mode/test/re2/GNUmakefile b/frida_mode/test/re2/GNUmakefile new file mode 100644 index 00000000..9f0b31d3 --- /dev/null +++ b/frida_mode/test/re2/GNUmakefile @@ -0,0 +1,170 @@ +PWD:=$(shell pwd)/ +ROOT:=$(shell realpath $(PWD)../../..)/ +BUILD_DIR:=$(PWD)build/ + +AFLPP_DRIVER_HOOK_SRC=$(PWD)aflpp_qemu_driver_hook.c +AFLPP_DRIVER_HOOK_OBJ=$(BUILD_DIR)aflpp_qemu_driver_hook.so + +LIBRE2_BUILD_DIR:=$(BUILD_DIR)libre2/ +HARNESS_BUILD_DIR:=$(BUILD_DIR)harness/ +RE2TEST_BUILD_DIR:=$(BUILD_DIR)re2test/ + +LIBRE2_URL:=https://github.com/google/re2.git +LIBRE2_DIR:=$(LIBRE2_BUILD_DIR)libre2/ +LIBRE2_MAKEFILE:=$(LIBRE2_DIR)Makefile +LIBRE2_LIB:=$(LIBRE2_DIR)obj/libre2.a + +HARNESS_FILE:=$(HARNESS_BUILD_DIR)StandaloneFuzzTargetMain.c +HARNESS_OBJ:=$(HARNESS_BUILD_DIR)StandaloneFuzzTargetMain.o +HARNESS_URL:="https://raw.githubusercontent.com/llvm/llvm-project/main/compiler-rt/lib/fuzzer/standalone/StandaloneFuzzTargetMain.c" + +RE2TEST_FILE:=$(RE2TEST_BUILD_DIR)target.cc +RE2TEST_OBJ:=$(RE2TEST_BUILD_DIR)target.o +RE2TEST_URL:="https://raw.githubusercontent.com/google/fuzzbench/master/benchmarks/re2-2014-12-09/target.cc" + +LDFLAGS += -lpthread + +TEST_BIN:=$(BUILD_DIR)test +ifeq "$(shell uname)" "Darwin" +TEST_BIN_LDFLAGS:=-undefined dynamic_lookup +endif + +TEST_DATA_DIR:=$(BUILD_DIR)in/ +AFLPP_DRIVER_DUMMY_INPUT:=$(TEST_DATA_DIR)in + +QEMU_OUT:=$(BUILD_DIR)qemu-out +FRIDA_OUT:=$(BUILD_DIR)frida-out + +ifndef ARCH + +ARCH=$(shell uname -m) +ifeq "$(ARCH)" "aarch64" + ARCH:=arm64 +endif + +ifeq "$(ARCH)" "i686" + ARCH:=x86 +endif +endif + +AFL_QEMU_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x4000000000) + +ifeq "$(ARCH)" "aarch64" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x0000aaaaaaaaa000) +endif + +ifeq "$(ARCH)" "x86_64" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x0000555555554000) +endif + +ifeq "$(ARCH)" "x86" + AFL_FRIDA_PERSISTENT_ADDR=$(shell $(PWD)get_symbol_addr.py -f $(TEST_BIN) -s LLVMFuzzerTestOneInput -b 0x56555000) +endif + +.PHONY: all clean qemu frida hook + +all: $(TEST_BIN) + make -C $(ROOT)frida_mode/ + +32: + CXXFLAGS="-m32" LDFLAGS="-m32" ARCH="x86" make all + +$(BUILD_DIR): + mkdir -p $@ + +######### HARNESS ######## +$(HARNESS_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(HARNESS_FILE): | $(HARNESS_BUILD_DIR) + wget -O $@ $(HARNESS_URL) + +$(HARNESS_OBJ): $(HARNESS_FILE) + $(CC) $(CXXFLAGS) $(LDFLAGS) -o $@ -c $< + +######### RE2TEST ######## + +$(RE2TEST_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(RE2TEST_FILE): | $(RE2TEST_BUILD_DIR) + wget -O $@ $(RE2TEST_URL) + +$(RE2TEST_OBJ): $(RE2TEST_FILE) | $(LIBRE2_MAKEFILE) + $(CXX) $(CXXFLAGS) $(LDFLAGS) -std=c++11 -I $(LIBRE2_DIR) -o $@ -c $< + +######### LIBRE2 ######## + +$(LIBRE2_BUILD_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(LIBRE2_MAKEFILE): $(LIBRE2_BUILD_DIR) + git clone https://github.com/google/re2.git $(LIBRE2_DIR) + cd $(LIBRE2_DIR) && git checkout 499ef7eff7455ce9c9fae86111d4a77b6ac335de + +$(LIBRE2_LIB): $(LIBRE2_MAKEFILE) + make -C $(LIBRE2_DIR) -j $(shell nproc) + +######### TEST ######## + +$(TEST_BIN): $(HARNESS_OBJ) $(RE2TEST_OBJ) $(LIBRE2_LIB) + $(CXX) \ + $(CFLAGS) \ + -o $@ \ + $(HARNESS_OBJ) $(RE2TEST_OBJ) $(LIBRE2_LIB) \ + -lz \ + $(LDFLAGS) \ + $(TEST_BIN_LDFLAGS) \ + +########## HOOK ######## + +$(AFLPP_DRIVER_HOOK_OBJ): $(AFLPP_DRIVER_HOOK_SRC) | $(BUILD_DIR) + $(CC) -shared $(CFLAGS) $(LDFLAGS) $< -o $@ + +########## DUMMY ####### + +$(TEST_DATA_DIR): | $(BUILD_DIR) + mkdir -p $@ + +$(AFLPP_DRIVER_DUMMY_INPUT): | $(TEST_DATA_DIR) + truncate -s 1M $@ + +###### TEST DATA ####### + +hook: $(AFLPP_DRIVER_HOOK_OBJ) + +clean: + rm -rf $(BUILD_DIR) + +qemu: $(TEST_BIN) $(AFLPP_DRIVER_HOOK_OBJ) $(AFLPP_DRIVER_DUMMY_INPUT) + AFL_QEMU_PERSISTENT_HOOK=$(AFLPP_DRIVER_HOOK_OBJ) \ + AFL_ENTRYPOINT=$(AFL_QEMU_PERSISTENT_ADDR) \ + AFL_QEMU_PERSISTENT_ADDR=$(AFL_QEMU_PERSISTENT_ADDR) \ + AFL_QEMU_PERSISTENT_GPR=1 \ + $(ROOT)afl-fuzz \ + -D \ + -V 30 \ + -Q \ + -i $(TEST_DATA_DIR) \ + -o $(QEMU_OUT) \ + -- \ + $(TEST_BIN) $(AFLPP_DRIVER_DUMMY_INPUT) + +frida: $(TEST_BIN) $(AFLPP_DRIVER_HOOK_OBJ) $(AFLPP_DRIVER_DUMMY_INPUT) + AFL_FRIDA_PERSISTENT_HOOK=$(AFLPP_DRIVER_HOOK_OBJ) \ + AFL_FRIDA_PERSISTENT_ADDR=$(AFL_FRIDA_PERSISTENT_ADDR) \ + AFL_ENTRYPOINT=$(AFL_FRIDA_PERSISTENT_ADDR) \ + $(ROOT)afl-fuzz \ + -D \ + -V 30 \ + -O \ + -i $(TEST_DATA_DIR) \ + -o $(FRIDA_OUT) \ + -- \ + $(TEST_BIN) $(AFLPP_DRIVER_DUMMY_INPUT) + +debug: + gdb \ + --ex 'set environment LD_PRELOAD=$(ROOT)afl-frida-trace.so' \ + --ex 'set disassembly-flavor intel' \ + --args $(TEST_BIN) $(TEST_DATA_DIR)basn0g01.re2 diff --git a/frida_mode/test/re2/Makefile b/frida_mode/test/re2/Makefile new file mode 100644 index 00000000..00b2b287 --- /dev/null +++ b/frida_mode/test/re2/Makefile @@ -0,0 +1,22 @@ +all: + @echo trying to use GNU make... + @gmake all || echo please install GNUmake + +32: + @echo trying to use GNU make... + @gmake 32 || echo please install GNUmake + +clean: + @gmake clean + +qemu: + @gmake qemu + +frida: + @gmake frida + +debug: + @gmake debug + +hook: + @gmake hook diff --git a/frida_mode/test/re2/aflpp_qemu_driver_hook.c b/frida_mode/test/re2/aflpp_qemu_driver_hook.c new file mode 100644 index 00000000..059d438d --- /dev/null +++ b/frida_mode/test/re2/aflpp_qemu_driver_hook.c @@ -0,0 +1,97 @@ +#include +#include + +#if defined(__x86_64__) + +struct x86_64_regs { + + uint64_t rax, rbx, rcx, rdx, rdi, rsi, rbp, r8, r9, r10, r11, r12, r13, r14, + r15; + + union { + + uint64_t rip; + uint64_t pc; + + }; + + union { + + uint64_t rsp; + uint64_t sp; + + }; + + union { + + uint64_t rflags; + uint64_t flags; + + }; + + uint8_t zmm_regs[32][64]; + +}; + +void afl_persistent_hook(struct x86_64_regs *regs, uint64_t guest_base, + uint8_t *input_buf, uint32_t input_buf_len) { + + memcpy((void *)regs->rdi, input_buf, input_buf_len); + regs->rsi = input_buf_len; + +} + +#elif defined(__i386__) + +struct x86_regs { + + uint32_t eax, ebx, ecx, edx, edi, esi, ebp; + + union { + + uint32_t eip; + uint32_t pc; + + }; + + union { + + uint32_t esp; + uint32_t sp; + + }; + + union { + + uint32_t eflags; + uint32_t flags; + + }; + + uint8_t xmm_regs[8][16]; + +}; + +void afl_persistent_hook(struct x86_regs *regs, uint64_t guest_base, + uint8_t *input_buf, uint32_t input_buf_len) { + + void **esp = (void **)regs->esp; + void * arg1 = esp[1]; + void **arg2 = &esp[2]; + memcpy(arg1, input_buf, input_buf_len); + *arg2 = (void *)input_buf_len; + +} + +#else + #pragma error "Unsupported architecture" +#endif + +int afl_persistent_hook_init(void) { + + // 1 for shared memory input (faster), 0 for normal input (you have to use + // read(), input_buf will be NULL) + return 1; + +} + diff --git a/frida_mode/test/re2/get_symbol_addr.py b/frida_mode/test/re2/get_symbol_addr.py new file mode 100755 index 00000000..1c46e010 --- /dev/null +++ b/frida_mode/test/re2/get_symbol_addr.py @@ -0,0 +1,36 @@ +#!/usr/bin/python3 +import argparse +from elftools.elf.elffile import ELFFile + +def process_file(file, symbol, base): + with open(file, 'rb') as f: + elf = ELFFile(f) + symtab = elf.get_section_by_name('.symtab') + mains = symtab.get_symbol_by_name(symbol) + if len(mains) != 1: + print ("Failed to find main") + return 1 + + main_addr = mains[0]['st_value'] + main = base + main_addr + print ("0x%016x" % main) + return 0 + +def hex_value(x): + return int(x, 16) + +def main(): + parser = argparse.ArgumentParser(description='Process some integers.') + parser.add_argument('-f', '--file', dest='file', type=str, + help='elf file name', required=True) + parser.add_argument('-s', '--symbol', dest='symbol', type=str, + help='symbol name', required=True) + parser.add_argument('-b', '--base', dest='base', type=hex_value, + help='elf base address', required=True) + + args = parser.parse_args() + return process_file (args.file, args.symbol, args.base) + +if __name__ == "__main__": + ret = main() + exit(ret) -- cgit 1.4.1