GitHub Actions Pwn Request Scanner
pwn-request-scanner is a critical severity check in the
devops category, written in python.
Its source is templates/devops/github/pwn-request-scanner.py in
cert-x-gen-templates.
What it checks
Section titled “What it checks”Detects pwn requests - workflows that check out untrusted pull request code while holding secrets or write permissions in the same job
Header
Section titled “Header”| Field | Value |
|---|---|
| Id | pwn-request-scanner |
| Severity | critical |
| Language | python |
| Category | devops |
| Author | Bugb Research |
| Template version | 2.0.0 |
| Confidence | 90 |
| CVSS | 9.3 |
| Weakness | CWE-829, CWE-94 |
| Tags | ci-cd, github-actions, supply-chain, pwn-request, pull-request-target, code-injection |
| Target kind | not recorded |
| Oracle | not recorded |
References
Section titled “References”Declared in the header. cxg parses @references and then discards it, and
nothing at scan time reads it, so this is the only place the links a
template cites are surfaced.
- https://securitylab.github.com/resources/github-actions-preventing-pwn-requests/
- https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions
Run it
Section titled “Run it”To see what the copy on your machine says about itself, and to confirm it is installed at all:
cxg template info pwn-request-scannerThe id it prints is the one to pass anywhere a template is selected. See
cxg template for the rest of
the subcommand, Scan a target for running
a scan, and
A match is not a finding for how
to read what comes back.
Related
Section titled “Related”- Template catalog is the whole corpus.
- devops is the rest of this category.
- Templates by weakness class groups checks by the defect they look for.
- Contribute a template is the route from a check you needed and could not find to a merged one.