CVE-2023-38201Keylime: challenge-response protocol bypass during agent registration
- 6.5MediumCVSS base score
- 0.49%Exploitation in 30 daysEPSS · top 57% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in the Keylime registrar that could allow a bypass of the challenge-response protocol during agent registration. This issue may allow an attacker to impersonate an agent and hide the true status of a monitored machine if the fake agent is added to the verifier list by a legitimate user, resulting in a breach of the integrity of the registrar database.
Timeline
ID reserved
By redhat
- 43 days later
· 43 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.49% · top 57% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
Red Hat · Red Hat Enterprise Linux 9
- unaffected 0:6.5.2-6.el9_2 – < *
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIkeylimeGHSA-f4r5-q63f-gcww (opens in a new tab)
References
References6
- RHSA-2023:5080 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/cve/CVE-2023-38201 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2222693 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- https://github.com/keylime/keylime/commit/9e5ac9f25cd400b16d5969f531cee28290543f2a (opens in a new tab)x_transferred
- https://github.com/keylime/keylime/security/advisories/GHSA-f4r5-q63f-gcww (opens in a new tab)x_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ZIZZB5NHNCS5D2AEH3ZAO6OQC72IK7WS/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-0106 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-f4r5-q63f-gcww (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-38201)Record last updated .