
Trovare potenziali vulnerabilità software dai messaggi di commit git

Trova potenziali vulnerabilità software dai messaggi dei commit git. Il formato di output è un JSON con il commit associato che potrebbe contenere una correzione relativa a una vulnerabilità software. La ricerca si basa su un insieme di espressioni regolari esclusivamente sui messaggi dei commit. Se sono presenti ID CVE, questi vengono aggiunti automaticamente nell'output. L'input può essere qualsiasi repository git o una fonte GH archive.
sudo apt install jq)git-vuln-finder può essere installato con poetry. Se non hai poetry installato, puoi eseguire curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python.
$ poetry install
$ poetry shell
$ git-vuln-finder -h
Puoi anche usare pip. Poi è sufficiente importarlo:
Python 3.8.0 (default, Dec 11 2019, 21:43:13)
[GCC 9.2.1 20191008] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from git_vuln_finder import find
>>> all_potential_vulnerabilities, all_cve_found, found = find("~/git/curl")
>>> [commit for commit, summary in all_potential_vulnerabilities.items() if summary['state'] == 'cve-assigned']
['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",
"author-email": "[email protected]",
"authored_date": 1567544372,
"branches": [
"master"
],
"commit-id": "9069838b30fb3b48af0123e39f664cea683254a5",
"committed_date": 1568009674,
"cve": [
"CVE-2019-5481",
"CVE-2019-5481"
],
"language": "en",
"message": "security:read_data fix bad realloc()\n\n... that could end up a double-free\n\nCVE-2019-5481\nBug: https://curl.haxx.se/docs/CVE-2019-5481.html\n",
"origin": "https://github.com/curl/curl.git",
"origin-github-api": "https://api.github.com/repos///github.com/curl/curl/commits/9069838b30fb3b48af0123e39f664cea683254a5",
"pattern-matches": [
"double-free"
],
"pattern-selected": "(?i)(double[-| ]free|buffer overflow|double free|race[-| ]condition)",
"state": "cve-assigned",
"stats": {
"deletions": 4,
"files": 1,
"insertions": 2,
"lines": 6
},
"summary": "security:read_data fix bad realloc()",
"tags": []
}
$ git clone https://github.com/cve-search/git-vuln-finder.git
$ cd https://github.com/cve-search/git-vuln-finder.git
$ pip install .
$ git-vuln-finder --help
Puoi anche usare pip.
pipx installa script (disponibili a livello di sistema) forniti da pacchetti Python
in virtualenv separati per isolarli dal tuo sistema e tra loro.
usage: git-vuln-finder [-h] [-v] [-r R] [-o O] [-s S] [-p P] [-c] [-t] [-gh GH]
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.
-c output only a list of the CVE pattern found in commit messages (disable by default)
-t Include tags matching a specific commit
-gh GH special option for gharchive, pass a file containing a PushEvent in JSON format
More info: https://github.com/cve-search/git-vuln-finder
git-vuln-finder include 3 pattern predefiniti che possono essere selezionati per trovare potenziali vulnerabilità descritte nei messaggi dei commit, come:
vulnpatterns è un pattern generico per vulnerabilità, mirato soprattutto ad applicazioni web e messaggi di commit di sicurezza generici. Basato su un articolo accademico.cryptopatterns è un pattern per vulnerabilità legate a errori crittografici menzionati nei messaggi di commit.cpatterns è un insieme di pattern standard per vulnerabilità tipiche dei linguaggi simili a C/C++.$ git-vuln-finder -r ~/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",
"language": "en",
"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": "[email protected]",
"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"
],
"origin": "[email protected]:curl/curl.git",
"origin-github-api": "https://api.github.com/repos/curl/curl/commits/6df916d751e72fc9a1febc07bb59c4ddd886c043",
"tags": [],
"cve": [
"CVE-2016-4802"
],
"state": "cve-assigned"
},
"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",
"language": "en",
"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": "[email protected]",
"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 "
],
"origin": "[email protected]:curl/curl.git",
"origin-github-api": "https://api.github.com/repos/curl/curl/commits/c2b3f264cb5210f82bdc84a3b89250a611b68dd3",
"tags": [],
"state": "under-review"
},
...
"98d132cf6a879faf0147aa83ea0c07ff326260ed": {
"message": "Add a macro for testing assertion in both debug and production builds\n\nIf we have an assert then in a debug build we want an abort() to occur.\nIn a production build we wan
t the function to return an error.\n\nThis introduces a new macro to assist with that. The idea is to replace\nexisting use of OPENSSL_assert() with this new macro. The problem with\nOPENSSL
_assert() is that it aborts() on an assertion failure in both debug\nand production builds. It should never be a library's decision to abort a\nprocess (we don't get to decide when to kill t
he life support machine or\nthe nuclear reactor control system). Additionally if an attacker can\ncause a reachable assert to be hit then this can be a source of DoS attacks\ne.g. see CVE-20
17-3733, CVE-2015-0293, CVE-2011-4577 and CVE-2002-1568.\n\nReviewed-by: Tim Hudson <[email protected]>\n(Merged from https://github.com/openssl/openssl/pull/3496)",
"commit-id": "98d132cf6a879faf0147aa83ea0c07ff326260ed",
"summary": "Add a macro for testing assertion in both debug and production builds",
"stats": {
"insertions": 18,
"deletions": 0,
"lines": 18,
"files": 1
},
"author": "Matt Caswell",
"author-email": "[email protected]",
"authored_date": 1495182637,
"committed_date": 1495457671,
"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 |ex
ploit|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-2017-3733",
"CVE-2015-0293",
"CVE-2011-4577",
"CVE-2002-1568"
],
"state": "cve-assigned"
}
$ git-vuln-finder -gh ../tests/gharchive_test.json
il valore per il parametro gh deve essere un file json contenente un array di ogni PushEvent che si vuole testare.
[
{
"id": "19351512310",
"type": "PushEvent",
"actor": {
"id": 32466128,
"login": "DavidCruciani",
"display_login": "DavidCruciani",
"gravatar_id": "",
"url": "https://api.github.com/users/DavidCruciani",
"avatar_url": "https://avatars.githubusercontent.com/u/32466128?"
},
"repo": {
"id": 424660123,
"name": "ail-project/ail-feeder-gharchive",
"url": "https://api.github.com/repos/ail-project/ail-feeder-gharchive"
},
"payload": {
"push_id": 8628652926,
"size": 1,
"distinct_size": 1,
"ref": "refs/heads/main",
"head": "910ed71a2819546a3f3bcce1ebb9e3984a8c8d86",
"before": "40a9ef5dc6b2add5184a0a58401bfe9058faa8df",
"commits": [
{
"sha": "910ed71a2819546a3f3bcce1ebb9e3984a8c8d86",
"author": {
"email": "[email protected]",
"name": "David Cruciani"
},
"message": "chg: [feeder] case sensitive",
"distinct": true,
"url": "https://api.github.com/repos/ail-project/ail-feeder-gharchive/commits/910ed71a2819546a3f3bcce1ebb9e3984a8c8d86"
}
]
},
"public": true,
"created_at": "2021-12-15T16:06:43Z",
"org": {
"id": 62389074,
"login": "ail-project",
"gravatar_id": "",
"url": "https://api.github.com/orgs/ail-project",
"avatar_url": "https://avatars.githubusercontent.com/u/62389074?"
}
}
]
Se l'obiettivo è importare il modulo per usarlo, il metodo da chiamare è find_event
from git_vuln_finder import find_event
for element in event:
for i in range(0,len(element["payload"]["commits"])):
all_potential_vulnerabilities, all_cve_found, found = find_event(element["payload"]["commits"][i], element)
{
"repo_name": "LeandroFChaves/gerenciador-alunos",
"message": "[UI] - Ajustes no css da aplica\u00e7\u00e3o\n\n- Adicionado padding para a exibi\u00e7\u00e3o do conte\u00fado das p\u00e1ginas;\n- Alinhado os bot\u00f5es de a\u00e7\u00f5es dos forms a direita da table",
"language": "pt",
"commit-id": "73a1c68b520853198eaac199a41d141ee96dc64d",
"author": "LeandroFChaves",
"author-email": "[email protected]",
"authored_date": "2021-10-01T03:00:07Z",
"branches": "refs/heads/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\u2212frame\u2212options|attack|cross site|exploit|malicious|directory traversal|\\bRCE\\b|\\bdos\\b|\\bXSRF \\b|\\bXSS\\b|clickjack|session.fixation|hijack|\\badvisory|\\binsecure|security|\\bcross\u2212origin\\b|unauthori[z|s]ed|infinite loop)",
"pattern-matches": [
"dos"
],
"origin-github-api": "https://api.github.com/repos/LeandroFChaves/gerenciador-alunos/commits/73a1c68b520853198eaac199a41d141ee96dc64d",
"state": "under-review"
}
$ pytest
git-vuln-finder è uno strumento automatico che rileva potenziali vulnerabilità nei messaggi di commit basandosi su parole chiave specifiche. Se intendi utilizzare le informazioni sulle vulnerabilità scoperte, ad esempio per la registrazione di CVE, verifica le vulnerabilità scoperte con gli autori del software prima di procedere.
Questo software è software libero e concesso in licenza con AGPL versione 3.
Accogliamo con favore contributi al software e in particolare pattern aggiuntivi per vulnerabilità. Ogni contributore verrà aggiunto nel file AUTHORS e possiederà collettivamente questo software open source. I contributori riconoscono il Developer Certificate of Origin.