GO-2022-0326

Improper certificate validation in github.com/sigstore/cosign

At a glance

Published
Updated
CVE
CVE-2022-23649
Aliases
BIT-cosign-2022-23649, GHSA-ccxc-vr6p-4858

Description

Cosign can be manipulated to claim that an entry for a signature in the OCI registry exists in the Rekor transparency log even if it does not. This requires the attacker to have pull and push permissions for the signature in OCI. This can happen with both standard signing with a keypair and "keyless signing" with Fulcio certificate authority.

Affected packages

PackageVersions
Go · github.com/sigstore/cosignintroduced 0, fixed 1.5.2

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — Go Vulnerability Database