Awesome

MEUZZ Fuzzer

Clone the repo

git clone --recurse-submodules git@github.com:RiS3-Lab/muse.git

Work Flow

1. SRC + Sanitizer (use wllvm) => prog + prog.bc
2. prog.bc (use afl-clang-fast) => afl-prog
3. prog.bc (use dyn-instr-clang) => dyninst-prog + dyninst-prog.bc
4. dyninst-prog.bc (use DMA) => prog.edge + prog.reach.bug + prog.reach.cov

Eventually, update config file AFL fuzz with afl-prog

• fill in [moriarty]
  • target_bin (remember to put in proper cli options as well!) QSYM run with prog
• fill in [qsym conc_explorer]
  • cmd (remember to put in proper cli options as well!) Coordinator use dyninst-prog + prog.edge + prog.reach.bug + prog.reach.cov to replay and collect data
• fill in [auxiliary info]
  • replay_prog_cmd (remember to put in proper cli options as well!)
  • bbl_bug_map
  • bbl_cov_map
  • pair_edge_file

To see some examples on how to configure muse, please look at the examples directory.

How to build Muse

Build with Docker

$ curl -fsSL https://get.docker.com/ | sudo sh

$ sudo usermod -aG docker [user_id]

$ docker run ubuntu:16.04

Unable to find image 'ubuntu:16.04' locally
16.04: Pulling from library/ubuntu
Digest: sha256:e348fbbea0e0a0e73ab0370de151e7800684445c509d46195aef73e090a49bd6
Status: Downloaded newer image for ubuntu:16.04

$ docker build -t muse .

$ docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
muse                latest              687322eff8f3        29 minutes ago      30.5GB
ubuntu              16.04               f975c5035748        10 days ago         112MB

Once the build has been successful, lunch the Docker image to test out MUSE.

# use --privileged flag to allow docker to mount a ramdisk

$ docker run --cap-add=SYS_PTRACE --priviledged -it muse:latest /bin/bash

Citation

If your research find one or several components of savior useful, please cite the following paper:

@inproceedings{meuzz,
  author    = {Chen, Yaohui and
              Ahmadi, Mansour and
              Mirzazade farkhani, Reza and
              Wang, Boyu and
              Lu, Long},
  title     = {{MEUZZ}: Smart Seed Scheduling for Hybrid Fuzzing},
  booktitle = {Proceedings of the 23rd International Symposium on Research in Attacks, Intrusions and
               Defenses},
  series = {RAID'20},
  year      = {2020},
  month={October}
}

Q&A

0. why pass -fsanitize=address,undefined when preparing bc file with wllvm?

Answer: for 2 reasons. First, UBSAN is only available at front-end; Second, DynInstr needs the input BC to be instrumented with sanitizer labels to guide its instrumentations.

1. why use llvm-3.8 and llvm-4.0

Answer: QSYM requires 3.8 while SVF requires 4.0

2. How to specify stdin and file input type

Anser: Use the @@ to specify if input is passed from file in the cli option (similar to AFL). See example configs under coordinator/configs