adulau/git-vuln-finder
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new: [option] -c option added to output only a list of the CVE pattern found in commit messages

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Alexandre Dulaunoy 2019-12-24 15:38:36 +01:00
parent 558358c44b
commit a75ecdbc87
Signed by: adulau
GPG key ID: 09E2CD4944E6CBCD
1 changed files with 10 additions and 6 deletions
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16
bin/finder.py
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@ -23,6 +23,7 @@ parser.add_argument("-r", type=str, help="git repository to analyse")
parser.add_argument("-o", type=str, help="Output format: [json]", default="json") parser.add_argument("-o", type=str, help="Output format: [json]", default="json")
parser.add_argument("-s", type=str, help="State of the commit found", default="under-review") parser.add_argument("-s", type=str, help="State of the commit found", default="under-review")
parser.add_argument("-p", type=str, help="Matching pattern to use: [vulnpatterns, cryptopatterns, cpatterns] - the pattern 'all' is used to match all the patterns at once.", default="vulnpatterns") parser.add_argument("-p", type=str, help="Matching pattern to use: [vulnpatterns, cryptopatterns, cpatterns] - the pattern 'all' is used to match all the patterns at once.", default="vulnpatterns")
parser.add_argument("-c", help="output only a list of the CVE pattern found in commit messages", action="store_true")
args = parser.parse_args() args = parser.parse_args()
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)") 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)")
@ -55,7 +56,7 @@ else:
found = 0 found = 0
potential_vulnerabilities = {} potential_vulnerabilities = {}
cve_found = set()
def find_vuln(commit, pattern=vulnpatterns): def find_vuln(commit, pattern=vulnpatterns):
m = pattern.search(commit.message) m = pattern.search(commit.message)
@ -74,6 +75,7 @@ def find_vuln(commit, pattern=vulnpatterns):
def summary(commit, branch, pattern): def summary(commit, branch, pattern):
rcommit = commit rcommit = commit
cve = extract_cve(rcommit.message) cve = extract_cve(rcommit.message)
# deduplication if similar commits on different branches
if rcommit.hexsha in potential_vulnerabilities: if rcommit.hexsha in potential_vulnerabilities:
potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch) potential_vulnerabilities[rcommit.hexsha]['branches'].append(branch)
else: else:
@ -102,6 +104,8 @@ def extract_cve(commit):
cve_find = re.compile(r'CVE-[1-2]\d{1,4}-\d{1,7}', re.IGNORECASE) cve_find = re.compile(r'CVE-[1-2]\d{1,4}-\d{1,7}', re.IGNORECASE)
m = cve_find.findall(commit) m = cve_find.findall(commit)
if m: if m:
for v in m:
cve_found.add(v)
return m return m
else: else:
return None return None
@ -118,11 +122,8 @@ for branch in repo_heads_names:
if isinstance(defaultpattern, typing.Pattern): if isinstance(defaultpattern, typing.Pattern):
ret = find_vuln(commit, pattern=defaultpattern) ret = find_vuln(commit, pattern=defaultpattern)
if ret: if ret:
#print("Vulnerability found: {}".format(ret))
#print(ret.hexsha)
rcommit = ret['commit'] rcommit = ret['commit']
summary(rcommit, branch, defaultpattern) summary(rcommit, branch, defaultpattern)
# Deduplication of commits on different branches
found += 1 found += 1
elif isinstance(defaultpattern, list): elif isinstance(defaultpattern, list):
for p in defaultpattern: for p in defaultpattern:
@ -131,7 +132,10 @@ for branch in repo_heads_names:
rcommit = ret['commit'] rcommit = ret['commit']
summary(rcommit, branch, p) summary(rcommit, branch, p)
found += 1 found += 1
if not args.c:
print(json.dumps(potential_vulnerabilities))
elif args.c:
print(json.dumps(list(cve_found)))
print(json.dumps(potential_vulnerabilities)) print("{} CVE referenced found in commit(s)".format(len(list(cve_found))), file=sys.stderr)
print("Total potential vulnerability found in {} commit(s)".format(found), file=sys.stderr) print("Total potential vulnerability found in {} commit(s)".format(found), file=sys.stderr)