NetSight
medium4.0

CVE-2024-56138

notation-go's timestamp signature generation lacks certificate revocation check

Impact

This issue was identified during Quarkslab's audit of the timestamp feature. ### Summary During the timestamp signature generation, the revocation status of the certificate(s) used to generate the timestamp signature was not verified. ### Details During timestamp signature generation, notation-go did not check the revocation status of the certificate chain used by the TSA. This oversight creates a vulnerability that could be exploited through a Man-in-The-Middle attack. An attacker could potentially use a compromised, intermediate, or revoked leaf certificate to generate a malicious countersignature, which would then be accepted and stored by `notation`. ### Impact This could lead to denial of service scenarios, particularly in CI/CD environments during signature verification processes because timestamp signature would fail due to the presence of a revoked certificate(s) potentially disrupting operations.

Affected packages

EcosystemPackageAffectedFixed in
gogithub.com/notaryproject/notation-go>= 1.2.0-beta.1, <= 1.3.0-rc.11.3.0-rc.2

Weakness classification

References