BIT-cosign-2022-36056

Import Source
https://github.com/bitnami/vulndb/tree/main/data/cosign/BIT-cosign-2022-36056.json
Aliases
Published
2024-01-31T15:12:31.082Z
Modified
2024-01-31T15:40:39.817Z
Details

Cosign is a project under the sigstore organization which aims to make signatures invisible infrastructure. In versions prior to 1.12.0 a number of vulnerabilities have been found in cosign verify-blob, where Cosign would successfully verify an artifact when verification should have failed. First a cosign bundle can be crafted to successfully verify a blob even if the embedded rekorBundle does not reference the given signature. Second, when providing identity flags, the email and issuer of a certificate is not checked when verifying a Rekor bundle, and the GitHub Actions identity is never checked. Third, providing an invalid Rekor bundle without the experimental flag results in a successful verification. And fourth an invalid transparency log entry will result in immediate success for verification. Details and examples of these issues can be seen in the GHSA-8gw7-4j42-w388 advisory linked. Users are advised to upgrade to 1.12.0. There are no known workarounds for these issues.

References

Affected packages

Bitnami / cosign

Package

Name
cosign

Affected ranges

Type
SEMVER
Events
Introduced
0The exact introduced commit is unknown
Fixed
1.12.0