cosign's `cosign verify-attestaton --type` can report a false positive if any attestation exists
`cosign verify-attestation` used with the `--type` flag will report a false positive verification when: - There is at least one attestation with a valid signature - There are NO attestations of the type being verified (--type defaults to "custom") This can happen when signing with a standard keypair and with "keyless" signing with Fulcio. Users should upgrade to cosign version 1.10.1 or greater for a patch. Currently the only workaround is to upgrade.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2022-35929US | critical9.8 | — | ||
cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used w… | ||||
references
External citations — patches, advisories, analysis.
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan