发布于3月6日3月6日 Members Apache HTTPD: HTTP request splitting with mod_rewrite and mod_proxy (CVE-2023-25690) Severity 10 CVSS (AV:N/AC:L/Au:N/C:C/I:C/A:C) Published 03/07/2023 Created 11/30/2023 Added 11/29/2023 Modified 02/14/2025 Description Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied request-target (URL) data and is then re-inserted into the proxied request-target using variable substitution. For example, something like: RewriteEngine on RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] ProxyPassReverse /here/ http://example.com:8080/ Request splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version 2.4.56 of Apache HTTP Server. Solution(s) apache-httpd-upgrade-latest References https://attackerkb.com/topics/cve-2023-25690 http://packetstormsecurity.com/files/176334/Apache-2.4.55-mod_proxy-HTTP-Request-Smuggling.html https://httpd.apache.org/security/vulnerabilities_24.html https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html https://security.gentoo.org/glsa/202309-01 CVE - 2023-25690
