CVEvulnerability

CVE-2021-3978

5.5 MEDIUM Published 2025-01-29 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-01-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-269

Description

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.

Affected configurations

• cloudflare octorpki (< 1.4.2)

Related

Weakness · CWE (1)

  • CWE-269 Improper Privilege Management weakness

References