Apache HTTP Server: HTTP request splitting with mod_rewrite…(CVE-2023-25690)

概要

Apache HTTP Server: HTTP request splitting with mod_rewrite and mod_proxy

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

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.

出典: OSV.dev (Open Source Vulnerabilities) NVD OSV

影響パッケージ

Bitnami apache

[{"type":"SEMVER","events":[{"introduced":"2.4.0"},{"fixed":"2.4.56"}]}]

ディストリビューション別の修正状況

各ディストリビューションが公開している、この CVE の修正パッケージ

Alpine Linux ALPINE-CVE-2023-25690 apache2 修正版: 2.4.56-r0
Debian DEBIAN-CVE-2023-25690 apache2 修正版: 2.4.56-1~deb11u1
Ubuntu UBUNTU-CVE-2023-25690 apache2

概要

原文の説明

影響パッケージ

ディストリビューション別の修正状況

参照URL