vulnerability

Amazon Linux 2023: CVE-2023-25690: Important priority package update for httpd

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Mar 7, 2023
Added
Feb 17, 2025
Modified
Jul 9, 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.
A vulnerability was found in httpd. This security issue occurs when some mod_proxy configurations on Apache HTTP Server allow an 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.

Solutions

amazon-linux-2023-upgrade-httpdamazon-linux-2023-upgrade-httpd-coreamazon-linux-2023-upgrade-httpd-core-debuginfoamazon-linux-2023-upgrade-httpd-debuginfoamazon-linux-2023-upgrade-httpd-debugsourceamazon-linux-2023-upgrade-httpd-develamazon-linux-2023-upgrade-httpd-filesystemamazon-linux-2023-upgrade-httpd-manualamazon-linux-2023-upgrade-httpd-toolsamazon-linux-2023-upgrade-httpd-tools-debuginfoamazon-linux-2023-upgrade-mod-ldapamazon-linux-2023-upgrade-mod-ldap-debuginfoamazon-linux-2023-upgrade-mod-luaamazon-linux-2023-upgrade-mod-lua-debuginfoamazon-linux-2023-upgrade-mod-proxy-htmlamazon-linux-2023-upgrade-mod-proxy-html-debuginfoamazon-linux-2023-upgrade-mod-sessionamazon-linux-2023-upgrade-mod-session-debuginfoamazon-linux-2023-upgrade-mod-sslamazon-linux-2023-upgrade-mod-ssl-debuginfo
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