漏洞信息
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Vulnerability Title
Fulcio has OIDC Discovery Redirect Following Allows SSRF and JWKS Substitution for Meta-Issuer Paths, with Kubernetes Service-Account Token Leakage
Vulnerability Description
Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Versions through 1.8.5 improperly follow cross-host redirects and attach Kubernetes ServiceAccount tokens during OIDC discovery, allowing a malicious or compromised issuer to perform blind SSRF, substitute and cache malicious JWKS keys, or disclose ServiceAccount tokens to external hosts. Version 1.8.6 blocks cross-host redirects, restricts token injection, and restricts local token loading. No known workarounds are available.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Vulnerability Type
服务端请求伪造(SSRF)
Vulnerability Title
sigstore fulcio 服务端请求伪造漏洞
Vulnerability Description
sigstore fulcio是sigstore组织的一个代码签名证书颁发服务。 sigstore fulcio 1.8.5及之前版本存在服务端请求伪造漏洞,该漏洞源于在OIDC发现过程中不正确地跟随跨主机重定向并附加Kubernetes ServiceAccount令牌,可能导致恶意或受入侵的签发者执行盲SSRF、替换和缓存恶意JWKS密钥或向外部主机泄露ServiceAccount令牌。
CVSS Information
N/A
Vulnerability Type
N/A