CVE-2021-3621
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.52% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-77, CWE-78
- Affected
- fedoraproject/sssd · redhat/virtualization · redhat/virtualization host · redhat/enterprise linux · redhat/enterprise linux eus · redhat/enterprise linux server aus · redhat/enterprise linux server tus · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1975142Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.htmlThird Party Advisory
- https://sssd.io/release-notes/sssd-2.6.0.htmlRelease Notes, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1975142Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/02/msg00008.html
- https://sssd.io/release-notes/sssd-2.6.0.htmlRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.