functrace - A function tracer

functrace is a tool that helps to analyze a binary file with dynamic instrumentation using DynamoRIO (http://dynamorio.org/).

These are some implemented features (based on DynamoRIO):

• disassemble all the executed code
• disassemble a specific function (dump if these are addresses)
• get arguments of a specific function (dump if these are addresses)
• get return value of a specific function (dump if this is an address)
• monitors application signals
• generate a report file
• ghidra(https://ghidra-sre.org/) coverage script (based on the functrace report file)

Setup

$ wget https://github.com/DynamoRIO/dynamorio/releases/download/release_7_0_0_rc1/DynamoRIO-Linux-7.0.0-RC1.tar.gz
$ tar xvzf DynamoRIO-Linux-7.0.0-RC1.tar.gz
$ git clone https://github.com/invictus1306/functrace
$ mkdir -p functrace/build
$ cd functrace/build
$ cmake .. -DDynamoRIO_DIR=/full_DR_path/DynamoRIO-Linux-7.0.0-RC1/cmake/
$ make -j4

Simple DEMO

Using functrace

$ drrun -c libfunctrace.so -report_file report -- target_program [args]

Options

The following [functrace](https://github.com/invictus1306/functrace) options are supported:

-disassembly                    -> disassemble all the functions 
-disas_func function_name       -> disassemble only the function function_name	
-wrap_function function_name    -> wrap the function function_name				
-wrap_function_args num_args    -> number of arguments of the wrapped function
-cbr                            -> remove the bb from the cache (in case of conditional jump)
-report_file file_name          -> report file name (required)
-verbose                        -> verbose

Simple usage

Option -verbose

$ drrun -c libfunctrace.so -report_file report -verbose -- target_program [args]

Option -disassemby

$ drrun -c libfunctrace.so -report_file report -disassembly -- target_program [args]

Option -disas_func

$ drrun -c libfunctrace.so -report_file report -disas_func name_function -- target_program [args]

Option -wrap_function and -wrap_function_args

$ drrun -c libfunctrace.so -report_file report -wrap_function name_function -wrap_function_args num_args -- target_program [args]

Option -cbr

$ drrun -c libfunctrace.so -report_file report -cbr -- target_program [args]

CVE-2018-4013 - Vulnerability Analysis

A vulnerability on the LIVE555 RTSP server library. This is the description.

Working enviroment

Tested on Ubuntu 16.04.5 LTS 64 bit

Future features

• Ghidra plugin
• Visual setup interface
• Store and compare different coverage analysis
• Run DR directy
• Add more functionality to functrace
• Support for Android