漏洞信息
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Vulnerability Title
cert-manager: Direct ACME Challenge resources can bypass Issuer DNS01 solver policy and use ClusterIssuer DNS credentials
Vulnerability Description
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.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Vulnerability Type
授权机制不正确
Vulnerability Title
cert-manager 授权问题漏洞
Vulnerability Description
cert-manager是cert-manager团队开源的一个证书管理器。将证书和证书颁发者添加为 Kubernetes 集群中的资源类型,并简化了这些证书的获取、续订和使用过程。 cert-manager 1.19.6之前版本和1.20.3之前版本存在授权问题漏洞,该漏洞源于在acme.cert-manager.io下的Challenge资源可以在没有将与Order、所有者引用或Issuer选择的solve关联的准入验证的情况下由命名空间用户直接创建,允许攻击者控制的Challenge.spec.so
CVSS Information
N/A
Vulnerability Type
N/A