mirror of
https://github.com/cve-search/git-vuln-finder.git
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wip, but seems to be working as a cli
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Cédric Bonhomme
parent
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commit
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GPG key ID:
A1CB94DE57B7A70D
13 changed files with 55 additions and 238 deletions
26
README.md
26
README.md
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@ -2,7 +2,11 @@
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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. If CVE IDs are present, those are added automatically in the output.
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Finding potential software vulnerabilities from git commit messages.
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The output format is a JSON with the associated commit which could contain a
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fix regarding a software vulnerability. The search is based on a set of regular
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expressions against the commit messages only. If CVE IDs are present, those are
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added automatically in the output.
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# Requirements
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@ -10,6 +14,24 @@ Finding potential software vulnerabilities from git commit messages. The output
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- GitPython
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- langdetect
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# Installation
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## Use in your Python software
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~~~bash
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$ poetry install git-vuln-finder
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$ poetry shell
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~~~
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## Use as a command line tool
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~~~bash
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$ pipx install git-vuln-finder
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$ finder --help
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~~~
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# Usage
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~~~bash
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@ -166,5 +188,3 @@ collectively own this open source software. The contributors acknowledge the [De
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- [Notes](https://gist.github.com/adulau/dce5a6ca5c65017869bb01dfee576303#file-finding-vuln-git-commit-messages-md)
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- https://csce.ucmss.com/cr/books/2017/LFS/CSREA2017/ICA2077.pdf (mainly using CVE referenced in the commit message) - archive (http://archive.is/xep9o)
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- https://asankhaya.github.io/pdf/automated-identification-of-security-issues-from-commit-messages-and-bug-reports.pdf (2 main regexps)
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@ -1,2 +0,0 @@
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gitpython
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langdetect
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@ -1 +0,0 @@
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theme: jekyll-theme-minimal
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169
bin/finder.py
169
bin/finder.py
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@ -1,4 +1,4 @@
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#!/usr/bin/env python3
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#!/usr/bin/env python
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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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@ -10,16 +10,21 @@
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# Copyright (c) 2019 Alexandre Dulaunoy - a@foo.be
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import os
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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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import typing
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from langdetect import detect as langdetect
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PATTERNS_PATH="../patterns"
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from git_vuln_finder import (
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build_pattern,
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get_patterns,
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find_vuln,
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summary,
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extract_cve
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)
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PATTERNS_PATH="./git_vuln_finder/patterns"
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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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@ -32,63 +37,6 @@ parser.add_argument("-t", help="Include tags matching a specific commit", action
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args = parser.parse_args()
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def build_pattern(pattern_file):
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fp = open(pattern_file, "r")
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rex = ""
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try:
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prefix_fp = open(pattern_file + ".prefix", "r")
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rex += prefix_fp.read()
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prefix_fp.close()
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except:
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pass
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for line in fp.readlines():
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rex += line.rstrip() + "|"
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rex = rex[:-1] # We remove the extra '|
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fp.close()
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try:
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suffix_fp = open(pattern_file + ".suffix", "r")
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rex += suffix_fp.read()
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suffix_fp.close()
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except:
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pass
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return rex
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def get_patterns(patterns_path=PATTERNS_PATH):
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patterns = {}
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for root, dirs, files in os.walk(patterns_path):
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path = root.split(os.sep)
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for f in files:
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if f.endswith(".prefix") or f.endswith(".suffix"):
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continue
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npath = root[len(patterns_path):].split(os.sep)
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try:
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npath.remove('')
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except ValueError:
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pass
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lang = npath[0]
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severity = npath[1]
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pattern_category = f
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try: # FIXME: Is there a better way?
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a = patterns[lang]
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except KeyError:
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patterns[lang] = {}
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try:
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a = patterns[lang][severity]
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except KeyError:
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patterns[lang][severity] = {}
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try:
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a = patterns[lang][severity][pattern_category]
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except KeyError:
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rex = build_pattern(root + os.sep + f)
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patterns[lang][severity][pattern_category] = re.compile(rex)
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return patterns
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patterns = get_patterns()
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vulnpatterns = patterns["en"]["medium"]["vuln"]
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cryptopatterns = patterns["en"]["medium"]["crypto"]
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@ -114,79 +62,12 @@ else:
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found = 0
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potential_vulnerabilities = {}
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all_potential_vulnerabilities = {}
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cve_found = set()
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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.groups()
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return ret
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else:
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return None
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def main():
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pass
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def summary(commit, branch, pattern, origin=None):
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rcommit = commit
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cve = extract_cve(rcommit.message)
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if origin is not None:
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origin = origin
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if origin.find('github.com'):
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origin_github_api = origin.split(':')[1]
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(org_name, repo_name) = origin_github_api.split('/', 1)
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if repo_name.find('.git$'):
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repo_name = re.sub(r".git$","", repo_name)
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origin_github_api = 'https://api.github.com/repos/{}/{}/commits/{}'.format(org_name, repo_name, rcommit.hexsha)
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else:
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origin = 'git origin unknown'
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# deduplication if similar 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]['language'] = langdetect(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'] = pattern.pattern
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potential_vulnerabilities[rcommit.hexsha]['pattern-matches'] = ret['match']
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potential_vulnerabilities[rcommit.hexsha]['origin'] = origin
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if origin_github_api:
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potential_vulnerabilities[commit.hexsha]['origin-github-api'] = origin_github_api
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potential_vulnerabilities[rcommit.hexsha]['tags'] = []
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if args.t:
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if repo.commit(rcommit).hexsha in tagmap:
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potential_vulnerabilities[rcommit.hexsha]['tags'] = tagmap[repo.commit(rcommit).hexsha]
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if cve: potential_vulnerabilities[rcommit.hexsha]['cve'] = cve
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if cve:
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potential_vulnerabilities[rcommit.hexsha]['state'] = "cve-assigned"
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else:
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potential_vulnerabilities[rcommit.hexsha]['state'] = args.s
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return rcommit.hexsha
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def extract_cve(commit):
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cve_find = re.compile(r'CVE-[1-2]\d{1,4}-\d{1,7}', re.IGNORECASE)
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m = cve_find.findall(commit)
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if m:
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for v in m:
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cve_found.add(v)
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return m
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else:
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return None
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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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defaultpattern
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for commit in commits:
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if isinstance(defaultpattern, typing.Pattern):
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ret = find_vuln(commit, pattern=defaultpattern)
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ret = find_vuln(commit, pattern=defaultpattern, versbose=args.v)
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if ret:
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rcommit = ret['commit']
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summary(rcommit, branch, defaultpattern, origin=origin)
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_, potential_vulnerabilities = summary(rcommit,
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branch,
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defaultpattern,
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origin=origin,
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vuln_match=ret['match'],
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tags_matching=args.t,
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commit_state=args.s)
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all_potential_vulnerabilities.update(potential_vulnerabilities)
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found += 1
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elif isinstance(defaultpattern, list):
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for p in defaultpattern:
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ret = find_vuln(commit, pattern=p)
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ret = find_vuln(commit, pattern=p, versbose=args.v)
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if ret:
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rcommit = ret['commit']
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summary(rcommit, branch, p, origin=origin)
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_, potential_vulnerabilities = summary(rcommit,
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branch,
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p,
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origin=origin,
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vuln_match=ret['match'],
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tags_matching=args.t,
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commit_state=args.s)
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all_potential_vulnerabilities.update(potential_vulnerabilities)
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found += 1
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if not args.c:
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print(json.dumps(potential_vulnerabilities))
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print(json.dumps(all_potential_vulnerabilities))
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elif args.c:
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print(json.dumps(list(cve_found)))
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double[-| ]free
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buffer overflow
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double free
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race[-| ]condition
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@ -1 +0,0 @@
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(?i)(
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@ -1 +0,0 @@
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)
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assessment
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lack of
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bad
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vulnerable
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missing
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unproper
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unsuitable
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breakable
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broken
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weak
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incorrect
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replace
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assessment
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pen([\s-]?)test
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pentest
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penetration([\s-]?)test
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report
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vulnerablity
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replace
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fix
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issue
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fixes
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add
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remove
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check){s1,}
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(crypto
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cryptographic
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cryptography
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encipherement
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encryption
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ciphers
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cipher
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AES
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DES
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3DES
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cipher
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GPG
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PGP
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OpenSSL
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SSH
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wireguard
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VPN
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CBC
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ECB
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CTR
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key[.|,|\s]
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private([\s-]?)key
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public([\s-]?)key size
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length
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strenght
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generation
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randomness
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entropy
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prng
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rng
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.*(
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@ -1 +0,0 @@
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){1,}
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denial of service
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\bXXE\b
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remote code execution
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\bopen redirect
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OSVDB
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\bvuln
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\bCVE\b
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\bXSS\b
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\bReDoS\b
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\bNVD\b
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malicious
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x−frame−options
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attack
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cross site
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exploit
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malicious
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directory traversal
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\bRCE\b
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\bdos\b
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\bXSRF \b
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\bXSS\b
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clickjack
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session.fixation
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hijack
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\badvisory
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\binsecure
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security
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\bcross−origin\b
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unauthori[z|s]ed
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infinite loop
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(?i)(
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@ -1 +0,0 @@
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)
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