mediumCVSS 6.3Vulnerability

GHSA-wc6p-4gwj-jcr8

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-q8w6-w55c-ccv5. This link is maintained to preserve external references. ### Original Description A flaw was found in Keylime. An attacker with root access on an enrolled monitored machine, where the Keylime agent runs, can exploit a vulnerability in the Keylime verifier. The verifier uses a hardcoded challenge nonce for Trusted Platform Module (TPM) quote attestation instead of a cryptographically random value. This allows the attacker to stockpile valid TPM quotes and replay them to evade detection after compromising the system. This issue affects only the push model deployment.

Properties

ghsa_id
GHSA-wc6p-4gwj-jcr8
severity
medium
summary
Duplicate Advisory: Keylime has a hardcoded attestation challenge nonce that allows replay attacks
cvss_score
6.3
cve_id
GHSA-wc6p-4gwj-jcr8
cvss_vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
is_ghsa_only
true
ghsa_published
2026-05-06T12:30:28Z
source_url
https://github.com/advisories/GHSA-wc6p-4gwj-jcr8
ghsa_updated
2026-05-11T14:08:53Z

Related Entities (4)

VULNERABLE_TO (1)

[Software]pip/keylime

AFFECTS (1)

[Software]pip/keylime

HAS_WEAKNESS (1)

[Weakness]Use of Predictable Algorithm in Random Number Generator

REPORTED_BY (1)

[Source]GitHub Advisory Database

Explore deeper with Ninja Signal's threat intelligence graph