Description (CNA)
Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.19.1, the Kata agent policies generated by the Contrast CLI contained a flaw in the CopyFile verification that allowed arbitrary writes to the guest root filesystem. A malicious process on the untrusted host able to connect to the Kata agent VSOCK could issue a series of CopyFile requests to overwrite security-critical files in the guest or trick the workload into disclosing sensitive data, effectively amounting to a full guest takeover. Users unable to upgrade can apply an equivalent rego policy fix passed to 'contrast generate --policy'.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| edgelesssys / contrast | affected 0 before 1.19.1; unaffected 1.19.1 |
CWE
CWE-59
References
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-rh99-wc69-c255
- https://www.vulncheck.com/advisories/contrast-before-1.19.1-copyfile-policy-symlink-subversion
ADP enrichment
No English description supplied.
No references supplied.