mirror of
https://github.com/cve-search/git-vuln-finder.git
synced 2024-11-22 23:07:20 +00:00
Alexandre Dulaunoy
3b9ad5c846
A new option -p has been added to select the pattern to use.
-p P Matching pattern to use: [vulnpatterns, cryptopatterns,
cpatterns]
The 3 default patterns are the following:
- A generic "vulnpatterns" which contain mainly web vulnerability and
common vulnerability messages including CVE numbers.
- A specific "cryptopatterns" to match potential vulnerabilities
matching cryptographic functionalities
- A specific "cpatterns" to match common vulnerabilities in C/C++-like
language.
cryptopatterns and cpatterns still need some more work.
106 lines
4.4 KiB
Python
106 lines
4.4 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Finding potential software vulnerabilities from git commit messages
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#
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# Software is free software released under the "GNU Affero General Public License v3.0"
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#
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# This software is part of cve-search.org
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#
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# Copyright (c) 2019 Alexandre Dulaunoy - a@foo.be
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import re
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import git
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import json
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import sys
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import argparse
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parser = argparse.ArgumentParser(description = "Finding potential software vulnerabilities from git commit messages.", epilog = "More info: https://github.com/cve-search/git-vuln-finder")
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parser.add_argument("-v", help="increase output verbosity", action="store_true")
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parser.add_argument("-r", type=str, help="git repository to analyse")
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parser.add_argument("-o", type=str, help="Output format: [json]", default="json")
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parser.add_argument("-s", type=str, help="State of the commit found", default="under-review")
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parser.add_argument("-p", type=str, help="Matching pattern to use: [vulnpatterns, cryptopatterns, cpatterns]", default="vulnpatterns")
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args = parser.parse_args()
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vulnpatterns = re.compile("(?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)")
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cryptopatterns = re.compile("(?i)(weak algorithm|weak cipher|weak entropy| weak crypto|lack of entropy)")
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cpatterns = re.compile("(?i)(double[-| ]free|buffer overflow|double free|race[-| ]condition)")
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if args.p == "vulnpatterns":
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defaultpattern = vulnpatterns
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elif args.p == "cryptopatterns":
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defaultpattern = cryptopatterns
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elif args.p == "cpatterns":
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defaultpattern = cpatterns
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else:
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parser.print_usage()
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parser.exit()
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if not args.r:
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parser.print_usage()
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parser.exit()
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else:
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repo = git.Repo(args.r)
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found = 0
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potential_vulnerabilities = {}
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def find_vuln(commit, pattern=vulnpatterns):
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m = pattern.search(commit.message)
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if m:
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if args.v:
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print("Match found: {}".format(m.group(0)), file=sys.stderr)
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print(commit.message, file=sys.stderr)
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print("---", file=sys.stderr)
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ret = {}
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ret['commit'] = commit
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ret['match'] = m.group(1)
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return ret
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else:
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# print(commit.message)
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return None
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# print("Nothing match")
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repo_heads = repo.heads
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repo_heads_names = [h.name for h in repo_heads]
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print(repo_heads_names, file=sys.stderr)
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for branch in repo_heads_names:
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commits = list(repo.iter_commits(branch))
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for commit in commits:
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ret = find_vuln(commit, pattern=defaultpattern)
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if ret:
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#print("Vulnerability found: {}".format(ret))
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#print(ret.hexsha)
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rcommit = ret['commit']
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# Deduplication of commits on different branches
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if rcommit.hexsha in potential_vulnerabilities:
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potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch)
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else:
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potential_vulnerabilities[rcommit.hexsha] = {}
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potential_vulnerabilities[rcommit.hexsha]['message'] = rcommit.message
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potential_vulnerabilities[rcommit.hexsha]['commit-id'] = rcommit.hexsha
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potential_vulnerabilities[rcommit.hexsha]['summary'] = rcommit.summary
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potential_vulnerabilities[rcommit.hexsha]['stats'] = rcommit.stats.total
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potential_vulnerabilities[rcommit.hexsha]['author'] = rcommit.author.name
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potential_vulnerabilities[rcommit.hexsha]['author-email'] = rcommit.author.email
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potential_vulnerabilities[rcommit.hexsha]['authored_date'] = rcommit.authored_date
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potential_vulnerabilities[rcommit.hexsha]['committed_date'] = rcommit.committed_date
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potential_vulnerabilities[rcommit.hexsha]['branches'] = []
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potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch)
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potential_vulnerabilities[rcommit.hexsha]['pattern-selected'] = args.p
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potential_vulnerabilities[rcommit.hexsha]['pattern-matches'] = ret['match']
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potential_vulnerabilities[rcommit.hexsha]['state'] = args.s
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found += 1
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print(json.dumps(potential_vulnerabilities))
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print("Total potential vulnerability found in {} commit(s)".format(found), file=sys.stderr)
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