I am trying to fuzz on a program using afl-fuzzer. However, I need the fuzzer to feed the input files to the program with a specific flag (eg. --flag input-file.xxx). Is there a way to do this ? Thank you!
You can use syntax
afl-fuzz -i in-dir -o out-dir -other -afl -parameters -- ./your-program --flag @@
AFL will substitute @@ with input file name.
Or you can specify the -f filename AFL option and specify that file name in your program's arguments, config file, environment variables -- anywhere. By default, AFL passes input to the stdin of the program under test.