CVE-2021-3978 Affecting cfrpki package, versions <1.4.2-1
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-CFRPKI-8679224
- published31 Jan 2025
- disclosed29 Jan 2025
Introduced: 29 Jan 2025
NewCVE-2021-3978 (opens in a new tab)How to fix?
Upgrade Debian:12 cfrpki to version 1.4.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cfrpki package and not the cfrpki package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
When copying files with rsync, octorpki uses the "-a" flag 0, which forces rsync to copy binaries with the suid bit set as root. Since the provided service definition defaults to root ( https://github.com/cloudflare/cfrpki/blob/master/package/octorpki.service ) this could allow for a vector, when combined with another vulnerability that causes octorpki to process a malicious TAL file, for a local privilege escalation.