漏洞信息
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Vulnerability Title
Gotenberg: SSRF deny-list bypass in IsPublicIP via IPv6 6to4 / NAT64 / site-local prefixes
Vulnerability Description
Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, the IsPublicIP function in pkg/gotenberg/outbound.go does not reject the 2002::/16 6to4 prefix, the 64:ff9b::/96 and 64:ff9b:1::/48 NAT64 prefixes, the fec0::/10 deprecated site-local prefix, Teredo, and other transition prefixes that can embed or route to non-public IPv4 destinations. The addr.Unmap operation only handles IPv4-mapped IPv6 addresses, so a crafted DNS AAAA record can cause the outbound HTTP client to treat an address wrapping an internal destination such as 169.254.169.254 as public. An unauthenticated attacker can use a conversion route with WithDenyPrivateIPs enabled to reach cloud metadata services, and the Chromium URL conversion route can return the internal response as a PDF, potentially exposing cloud credentials. Exploitation requires a deployment whose host routes the relevant IPv6 prefix, such as a dual-stack or NAT64-enabled environment. This issue is fixed in version 8.33.0.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Vulnerability Type
不完整的黑名单
Vulnerability Title
Gotenberg 输入验证错误漏洞
Vulnerability Description
Gotenberg是Gotenberg团队开源的一个文档转换应用服务器。 Gotenberg 8.33.0之前版本存在安全漏洞,该漏洞源于IsPublicIP函数未正确拒绝某些IPv6转换前缀,导致特制DNS AAAA记录可将内部地址视为公网,未经身份验证的攻击者可能利用转换路由访问云元数据服务,造成云凭据泄露。
CVSS Information
N/A
Vulnerability Type
N/A