CVE-2021-3621
sssd - security update
8.8
HIGH
CVSS 3.1
EPSS 0.38%
Description
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
How to fix CVE-2021-3621
To remediate CVE-2021-3621, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.1-2+deb11u1 or later
- —upgrade to 1.15.0-3+deb9u2 or later
- —upgrade to 2.4.1-2+deb11u1 or later
Is CVE-2021-3621 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.4.1-2+deb11u1
- from 0, < 1.15.0-3+deb9u2
- from 0, < 2.4.1-2+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |