CVE-2023-27486
All versions of xCAT prior to xCAT 2.16.5 are vulnerable.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
xCAT is a toolkit for deployment and administration of computer clusters. In versions prior to 2.16.5 if zones are configured as a mechanism to secure clusters in XCAT, it is possible for a local root user from one node to obtain credentials to SSH to any node in any zone, except the management node of the default zone. XCAT zones are not enabled by default. Only users that use the optional zone feature are impacted. All versions of xCAT prior to xCAT 2.16.5 are vulnerable. This problem has been fixed in xCAT 2.16.5. Users making use of zones should upgrade to 2.16.5. Users unable to upgrade may mitigate the issue by disabling zones or patching the management node with the fix contained in commit `85149c37f49`.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.85% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- xcat project/xcat
- Source
- security-advisories@github.com
References
- https://github.com/xcat2/xcat-core/issues/7246Exploit, Issue Tracking
- https://github.com/xcat2/xcat-core/pull/7247Issue Tracking, Patch
- https://github.com/xcat2/xcat-core/pull/7247/commits/85149c37f49dbca7bd85f1f586960315604fc024Patch
- https://github.com/xcat2/xcat-core/security/advisories/GHSA-hpxg-7428-6jvvVendor Advisory
- https://github.com/xcat2/xcat-core/issues/7246Exploit, Issue Tracking
- https://github.com/xcat2/xcat-core/pull/7247Issue Tracking, Patch
- https://github.com/xcat2/xcat-core/pull/7247/commits/85149c37f49dbca7bd85f1f586960315604fc024Patch
- https://github.com/xcat2/xcat-core/security/advisories/GHSA-hpxg-7428-6jvvVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.