Description (CNA)
Contrast (edgelesssys/contrast) versions 1.14.0 before 1.23.1 generate runtime policies that fail to detect all container image substitutions. A bad rebase during a Kata Containers update accidentally introduced an `allow_storage` rule that accepts storage entries using the `image_guest_pull` driver without verifying the image digest. An attacker with access to the Kata agent API — for example, a Kubernetes cluster administrator in Contrast's threat model — can therefore substitute a container image with an exploit payload, provided the substituted image satisfies the remaining policy rules, undermining the confidential container's integrity guarantees.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| edgelesssys / contrast | affected 1.14.0 before 1.23.1; unaffected 1.23.1 |
CWE
CWE-20
References
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-m2qg-wrxv-h898
- https://www.vulncheck.com/advisories/contrast-before-1.23.1-image-substitution-via-policy-generation
ADP enrichment
No English description supplied.
No references supplied.