漏洞信息
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Vulnerability Title
Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests
Vulnerability Description
Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.26.10, zalando/skipper's OpenPolicyAgent integration silently bypasses request-body inspection on HTTP/1.1 Transfer-Encoding: chunked and HTTP/2 requests that omit the content-length pseudo-header, because the opaAuthorizeRequestWithBody filter and OpenPolicyAgentInstance.ExtractHttpBodyOptionally in filters/openpolicyagent/openpolicyagent.go produce an empty raw_body and input.parsed_body while the upstream service receives the full attacker-controlled body. This issue is fixed in version 0.26.10.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Vulnerability Title
Zalando SE Skipper 输入验证错误漏洞
Vulnerability Description
zalando Skipper是德国zalando公司开源的一个HTTP路由器和反向代理。 zalando skipper 0.26.10之前版本存在输入验证错误漏洞,该漏洞源于OpenPolicyAgent集成对HTTP/1.1 Transfer-Encoding: chunked和缺少content-length伪标头的HTTP/2请求中的请求体检查被静默绕过,导致OPA过滤器产生空的raw_body和input.parsed_body,而上游服务接收完整攻击者控制的请求体。
CVSS Information
N/A
Vulnerability Type
N/A