GitHub Advisoryadvisory · Go

GHSA-vjxv-45g9-9296 cosign's `cosign verify-attestaton --type` can report a false positive if any attestation exists

HIGH Published 2022-08-10 Modified 2022-08-10 Official page ↗
Aliases
CVE-2022-35929
Ecosystem
Go
Packages
github.com/sigstore/cosign
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-347
Reviewed
2022-08-10

Affected packages

• Go github.com/sigstore/cosign: < 1.10.1 → fixed in 1.10.1

Description

`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.

Related

Alias · CVE (1)

  • CVE-2022-35929 cosign is a container signing and verification utility. vulnerability

Weakness · CWE (1)

  • CWE-347 Improper Verification of Cryptographic Signature weakness

References