جزئیات آسیب‌پذیری

cert-manager adds certificates and certificate issuers as resource types in Kubernetes clusters, and simplifies the process of obtaining, renewing and using those certificates. From 1.18.0 until 1.19.6 and 1.20.3, Challenge resources under acme.cert-manager.io can be created directly by namespace users without admission validation tying the Challenge to an Order, owner reference, or Issuer-selected solver, allowing attacker-controlled Challenge.spec.solver values referencing a ClusterIssuer to bypass DNS01 solver selectors such as dnsZones, dnsNames, and matchLabels and cause cert-manager to use ClusterIssuer DNS credentials for attacker-selected provider settings and DNS names, including disclosure of X-Api-User and X-Api-Key headers for acme-dns. This issue is fixed in versions 1.19.6 and 1.20.3.

• https://github.com/cert-manager/cert-manager/pull/8940 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/pull/8941 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/commit/6bda47297c8fbc6b121b8b76624b668d26f1a155 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/commit/b37dbf01ecea50a0b3a19df0a7fe4c5ad6803f16 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/releases/tag/v1.19.6 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/releases/tag/v1.20.3 x_refsource_MISC
• https://github.com/cert-manager/cert-manager/security/advisories/GHSA-8rvj-mm4h-c258 x_refsource_CONFIRM