CVE-2021-3978

Published Jan 29, 2025

Last updated 3 months ago

Overview

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.
Source
cna@cloudflare.com
NVD status
Received

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.5
Impact score
6
Exploitability score
0.8
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Severity
HIGH

Weaknesses

cna@cloudflare.com
CWE-269

Social media

Hype score
Not currently trending