adulau/git-vuln-finder
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moved find function used for the cli in a file run.py

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Cédric Bonhomme 2020-01-06 22:30:14 +01:00
parent e10ab62c71
commit df6c4c163e
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7 changed files with 111 additions and 87 deletions
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2
.gitignore vendored
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@ -19,7 +19,7 @@ dist/*
.coverage
.mypy_cache/
.cache/
.test_repos/
test_repos/
# sphinx
docs/_build

8
README.md
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@ -37,6 +37,7 @@ Type "help", "copyright", "credits" or "license" for more information.
['9069838b30fb3b48af0123e39f664cea683254a5', 'facb0e4662415b5f28163e853dc6742ac5fafb3d',
... snap ...
'8a75dbeb2305297640453029b7905ef51b87e8dd', '1dc43de0dccc2ea7da6dddb7b98f8d7dcf323914', '192c4f788d48f82c03e9cef40013f34370e90737', '2eb8dcf26cb37f09cffe26909a646e702dbcab66', 'fa1ae0abcde5df8d0b3283299e3f246bedf7692c', 'c11c30a8c8d727dcf5634fa0cc6ee0b4b77ddc3d', '75ca568fa1c19de4c5358fed246686de8467c238', 'a20daf90e358c1476a325ea665d533f7a27e3364', '042cc1f69ec0878f542667cb684378869f859911']
>>> print(json.dumps(all_potential_vulnerabilities['9069838b30fb3b48af0123e39f664cea683254a5'], sort_keys=True, indent=4, separators=(",", ": ")))
{
"author": "Daniel Stenberg",
@ -79,8 +80,9 @@ $ pipx install git-vuln-finder
$ git-vuln-finder --help
~~~
``pipx`` installs scripts (system wide available) provided by Python packages into
separate virtualenvs to shield them from your system and each other.
You can also use pip.
``pipx`` installs scripts (system wide available) provided by Python packages
into separate virtualenvs to shield them from your system and each other.
### Usage
@ -106,6 +108,7 @@ optional arguments:
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:
@ -114,6 +117,7 @@ git-vuln-finder comes with 3 default patterns which can be selected to find the
- [`cryptopatterns`](https://github.com/cve-search/git-vuln-finder/blob/master/patterns/en/medium/crypto) is a vulnerability pattern for cryptographic errors mentioned in commit messages.
- [`cpatterns`](https://github.com/cve-search/git-vuln-finder/blob/master/patterns/en/medium/c) is a set of standard vulnerability patterns see for C/C++-like languages.
## A sample partial output from Curl git repository
~~~bash

7
bin/finder.py
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@ -56,8 +56,11 @@ def main():
parser.exit()
all_potential_vulnerabilities, all_cve_found, found = find(
args.r, tags_matching=args.t, commit_state=args.s, verbose=args.v,
defaultpattern=args.p
args.r,
tags_matching=args.t,
commit_state=args.s,
verbose=args.v,
defaultpattern=args.p,
)
if not args.c:

2
git_vuln_finder/__init__.py
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@ -1,6 +1,6 @@
from git_vuln_finder.pattern import build_pattern
from git_vuln_finder.pattern import get_patterns
from git_vuln_finder.vulnerability import find
from git_vuln_finder.vulnerability import find_vuln
from git_vuln_finder.vulnerability import summary
from git_vuln_finder.vulnerability import extract_cve
from git_vuln_finder.run import find

97
git_vuln_finder/run.py Normal file
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@ -0,0 +1,97 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Finding potential software vulnerabilities from git commit messages
#
# Software is free software released under the "GNU Affero General Public License v3.0"
#
# This software is part of cve-search.org
#
# Copyright (c) 2019-2020 Alexandre Dulaunoy - a@foo.be
import sys
import git
import typing
from git_vuln_finder import get_patterns, find_vuln, summary
def find(
repo,
tags_matching=False,
commit_state="under-review",
verbose=False,
defaultpattern="all",
):
# Initialization of the variables for the results
repo = git.Repo(repo)
found = 0
all_potential_vulnerabilities = {}
all_cve_found = set()
# Initialization of the patterns
patterns = get_patterns()
vulnpatterns = patterns["en"]["medium"]["vuln"]
cryptopatterns = patterns["en"]["medium"]["crypto"]
cpatterns = patterns["en"]["medium"]["c"]
if defaultpattern == "vulnpatterns":
defaultpattern = vulnpatterns
elif defaultpattern == "cryptopatterns":
defaultpattern = cryptopatterns
elif defaultpattern == "cpatterns":
defaultpattern = cpatterns
elif defaultpattern == "all":
defaultpattern = [vulnpatterns, cryptopatterns, cpatterns]
repo_heads = repo.heads
repo_heads_names = [h.name for h in repo_heads]
print(repo_heads_names, file=sys.stderr)
origin = repo.remotes.origin.url
tagmap = {}
if tags_matching:
for t in repo.tags:
tagmap.setdefault(repo.commit(t).hexsha, []).append(str(t))
for branch in repo_heads_names:
commits = list(repo.iter_commits(branch))
defaultpattern
for commit in commits:
if isinstance(defaultpattern, typing.Pattern):
ret = find_vuln(commit, pattern=defaultpattern, verbose=verbose)
if ret:
rcommit = ret["commit"]
_, potential_vulnerabilities, cve_found = summary(
repo,
rcommit,
branch,
tagmap,
defaultpattern,
origin=origin,
vuln_match=ret["match"],
tags_matching=tags_matching,
commit_state=commit_state,
)
all_potential_vulnerabilities.update(potential_vulnerabilities)
all_cve_found.update(cve_found)
found += 1
elif isinstance(defaultpattern, list):
for p in defaultpattern:
ret = find_vuln(commit, pattern=p, verbose=verbose)
if ret:
rcommit = ret["commit"]
_, potential_vulnerabilities, cve_found = summary(
repo,
rcommit,
branch,
tagmap,
p,
origin=origin,
vuln_match=ret["match"],
tags_matching=tags_matching,
commit_state=commit_state,
)
all_potential_vulnerabilities.update(potential_vulnerabilities)
all_cve_found.update(cve_found)
found += 1
return all_potential_vulnerabilities, all_cve_found, found

80
git_vuln_finder/vulnerability.py
View file

@ -9,90 +9,10 @@
#
# Copyright (c) 2019-2020 Alexandre Dulaunoy - a@foo.be
import git
import re
import sys
import typing
from langdetect import detect as langdetect
from git_vuln_finder import get_patterns
def find(repo, tags_matching=False, commit_state="under-review", verbose=False, defaultpattern="all"):
# Initialization of the variables for the results
repo = git.Repo(repo)
found = 0
all_potential_vulnerabilities = {}
all_cve_found = set()
# Initialization of the patterns
patterns = get_patterns()
vulnpatterns = patterns["en"]["medium"]["vuln"]
cryptopatterns = patterns["en"]["medium"]["crypto"]
cpatterns = patterns["en"]["medium"]["c"]
if defaultpattern == "vulnpatterns":
defaultpattern = vulnpatterns
elif defaultpattern == "cryptopatterns":
defaultpattern = cryptopatterns
elif defaultpattern == "cpatterns":
defaultpattern = cpatterns
elif defaultpattern == "all":
defaultpattern = [vulnpatterns, cryptopatterns, cpatterns]
repo_heads = repo.heads
repo_heads_names = [h.name for h in repo_heads]
print(repo_heads_names, file=sys.stderr)
origin = repo.remotes.origin.url
tagmap = {}
if tags_matching:
for t in repo.tags:
tagmap.setdefault(repo.commit(t).hexsha, []).append(str(t))
for branch in repo_heads_names:
commits = list(repo.iter_commits(branch))
defaultpattern
for commit in commits:
if isinstance(defaultpattern, typing.Pattern):
ret = find_vuln(commit, pattern=defaultpattern, verbose=verbose)
if ret:
rcommit = ret["commit"]
_, potential_vulnerabilities, cve_found = summary(
repo,
rcommit,
branch,
tagmap,
defaultpattern,
origin=origin,
vuln_match=ret["match"],
tags_matching=tags_matching,
commit_state=commit_state,
)
all_potential_vulnerabilities.update(potential_vulnerabilities)
all_cve_found.update(cve_found)
found += 1
elif isinstance(defaultpattern, list):
for p in defaultpattern:
ret = find_vuln(commit, pattern=p, verbose=verbose)
if ret:
rcommit = ret["commit"]
_, potential_vulnerabilities, cve_found = summary(
repo,
rcommit,
branch,
tagmap,
p,
origin=origin,
vuln_match=ret["match"],
tags_matching=tags_matching,
commit_state=commit_state,
)
all_potential_vulnerabilities.update(potential_vulnerabilities)
all_cve_found.update(cve_found)
found += 1
return all_potential_vulnerabilities, all_cve_found, found
def find_vuln(commit, pattern, verbose=False):
"""Find a potential vulnerability from a commit message thanks to a regex

2
tests/test_finder.py
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@ -3,7 +3,7 @@
from git_vuln_finder import find
def test_find_vuln(clone_curl):
def test_find_vuln():
all_potential_vulnerabilities, all_cve_found, found = find("./test_repos/curl/")
#assert len(list(all_cve_found)) == 64