CVE-2021-3907
Last modified
CVE-2021-3907 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. EPSS estimates a 4.06% chance of exploitation in the next 30 days.
Description
OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cloudflare | Octorpki | < 1.3.0 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959Third Party Advisory
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fhThird Party Advisory
- https://www.debian.org/security/2021/dsa-5033Third Party Advisory
- https://www.debian.org/security/2022/dsa-5041Third Party Advisory
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-3jhm-87m6-x959Third Party Advisory
- https://github.com/cloudflare/cfrpki/security/advisories/GHSA-cqh2-vc2f-q4fhThird Party Advisory
- https://www.debian.org/security/2021/dsa-5033Third Party Advisory
- https://www.debian.org/security/2022/dsa-5041Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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