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Finding potential software vulnerabilities from git commit messages
19 commits 1 branch 5 tags 388 KiB
Python 100%
Find a file
Alexandre Dulaunoy 846ee3a965
new: [cve] automatic extraction of CVE id from commit message 
If one of more CVE id(s) are found in a commit message, those are added
in the finding output.

Example:

  "8c6f86c7c5350fadf22d32d6cd4712e2ad4447ba": {
    "message": "Fix an overflow bug in rsaz_512_sqr\n\nThere is an overflow bug in the x64_64 Montgomery squaring procedure used in\nexponentiation with 512-bit moduli. No EC algorithms are affected. Analysis\nsuggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a\nresult of this defect would be very difficult to perform and are not believed\nlikely. Attacks against DH512 are considered just feasible. However, for an\nattack the target would have to re-use the DH512 private key, which is not\nrecommended anyway. Also applications directly using the low level API\nBN_mod_exp may be affected if they use BN_FLG_CONSTTIME.\n\nCVE-2019-1551\n\nReviewed-by: Paul Dale <paul.dale@oracle.com>\nReviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>\n(Merged from https://github.com/openssl/openssl/pull/10574)\n",
    "commit-id": "8c6f86c7c5350fadf22d32d6cd4712e2ad4447ba",
    "summary": "Fix an overflow bug in rsaz_512_sqr",
    "stats": {
      "insertions": 197,
      "deletions": 184,
      "lines": 381,
      "files": 1
    },
    "author": "Andy Polyakov",
    "author-email": "appro@openssl.org",
    "authored_date": 1575460101,
    "committed_date": 1575635491,
    "branches": [
      "master"
    ],
    "pattern-selected": "(?i)(denial of service |\bXXE\b|remote code execution|\bopen redirect|OSVDB|\bvuln|\bCVE\b |\bXSS\b|\bReDoS\b|\bNVD\b|malicious|x−frame−options|attack|cross site |exploit|malicious|directory traversal |\bRCE\b|\bdos\b|\bXSRF \b|\bXSS\b|clickjack|session.fixation|hijack|\badvisory|\binsecure |security |\bcross−origin\b|unauthori[z|s]ed |infinite loop)",
    "pattern-matches": [
      "attack"
    ],
    "cve": [
      "CVE-2019-1551"
    ],
    "state": "cve-assigned"
  }

The state is also updated to cve-assigned if one or more CVE are present
in the commit message.
2019-12-17 13:37:18 +01:00
bin new: [cve] automatic extraction of CVE id from commit message 2019-12-17 13:37:18 +01:00
README.md chg: [doc] updated to match new output 2019-12-17 08:53:13 +01:00
REQUIREMENTS new: [git-vuln-finder] Initial release of git-vuln-finder 2019-11-03 15:26:43 +01:00

README.md

git-vuln-finder

Finding potential software vulnerabilities from git commit messages. The output format is a JSON with the associated commit which could contain a fix regarding a software vulnerability. The search is based on a set of regular expressions against the commit messages only.

Requirements

  • Python 3
  • GitPython

Usage

usage: finder.py [-h] [-v] [-r R] [-o O] [-s S] [-p P]

Finding potential software vulnerabilities from git commit messages.

optional arguments:
  -h, --help  show this help message and exit
  -v          increase output verbosity
  -r R        git repository to analyse
  -o O        Output format: [json]
  -s S        State of the commit found
  -p P        Matching pattern to use: [vulnpatterns, cryptopatterns,
              cpatterns] - the pattern 'all' is used to match all the patterns
              at once.

More info: https://github.com/cve-search/git-vuln-finder

Patterns

git-vuln-finder comes with 3 default patterns which can be selected to find the potential vulnerabilities described in the commit messages such as:

  • vulnpatterns is a generic vulnerability pattern especially targeting web application and generic security commit message. Based on an academic paper.
  • cryptopatterns is a vulnerability pattern for cryptographic errors mentioned in commit messages.
  • cpatterns is a set of standard vulnerability patterns see for C/C++-like languages.

A sample partial output from Curl git repository

python3 finder.py -r /home/adulau/git/curl | jq .
...
  "6df916d751e72fc9a1febc07bb59c4ddd886c043": {
    "message": "loadlibrary: Only load system DLLs from the system directory\n\nInspiration provided by: Daniel Stenberg and Ray Satiro\n\nBug: https://curl.haxx.se/docs/adv_20160530.html\n\nRef: Windows DLL hijacking with curl, CVE-2016-4802\n",
    "commit-id": "6df916d751e72fc9a1febc07bb59c4ddd886c043",
    "summary": "loadlibrary: Only load system DLLs from the system directory",
    "stats": {
      "insertions": 180,
      "deletions": 8,
      "lines": 188,
      "files": 7
    },
    "author": "Steve Holme",
    "author-email": "steve_holme@hotmail.com",
    "authored_date": 1464555460,
    "committed_date": 1464588867,
    "branches": [
      "master"
    ],
    "pattern-selected": "(?i)(denial of service |\bXXE\b|remote code execution|\bopen redirect|OSVDB|\bvuln|\bCVE\b |\bXSS\b|\bReDoS\b|\bNVD\b|malicious|x−frame−options|attack|cross site |exploit|malicious|directory traversal |\bRCE\b|\bdos\b|\bXSRF \b|\bXSS\b|clickjack|session.fixation|hijack|\badvisory|\binsecure |security |\bcross−origin\b|unauthori[z|s]ed |infinite loop)",
    "pattern-matches": "hijack",
    "state": "under-review"
  },
  "c2b3f264cb5210f82bdc84a3b89250a611b68dd3": {
    "message": "CONNECT_ONLY: don't close connection on GSS 401/407 reponses\n\nPreviously, connections were closed immediately before the user had a\nchance to extract the socket when the proxy required Negotiate\nauthentication.\n\nThis regression was brought in with the security fix in commit\n79b9d5f1a42578f\n\nCloses #655\n",
    "commit-id": "c2b3f264cb5210f82bdc84a3b89250a611b68dd3",
    "summary": "CONNECT_ONLY: don't close connection on GSS 401/407 reponses",
    "stats": {
      "insertions": 4,
      "deletions": 2,
      "lines": 6,
      "files": 1
    },
    "author": "Marcel Raad",
    "author-email": "raad@teamviewer.com",
    "authored_date": 1455523116,
    "committed_date": 1461704516,
    "branches": [
      "master"
    ],
    "pattern-selected": "(?i)(denial of service |\bXXE\b|remote code execution|\bopen redirect|OSVDB|\bvuln|\bCVE\b |\bXSS\b|\bReDoS\b|\bNVD\b|malicious|x−frame−options|attack|cross site |exploit|malicious|directory traversal |\bRCE\b|\bdos\b|\bXSRF \b|\bXSS\b|clickjack|session.fixation|hijack|\badvisory|\binsecure |security |\bcross−origin\b|unauthori[z|s]ed |infinite loop)",
    "pattern-matches": "security ",
    "state": "under-review"
  },
...

License and author(s)

This software is free software and licensed under the AGPL version 3.

Copyright (c) 2019 Alexandre Dulaunoy - https://github.com/adulau/

References