CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NCVE-2021-3978
Medium (5.5) in cloudflare octorpki. EPSS 0.1% chance of exploitation in the next 30 days. Fixed in github.com/cloudflare/cfrpki 1.4.2.
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.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-31)
- CWE
- CWE-269
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cloudflare:octorpki
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3pqh-p72c-fj85 | Go | github.com/cloudflare/cfrpki | <1.4.2 | 1.4.2 |
| GO-2022-0580 | Go | github.com/cloudflare/cfrpki | <1.4.2 | 1.4.2 |