HTTP Request Smuggling Affecting httpd:2.4/mod_md package, versions <1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa
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Test your applications- Snyk ID SNYK-ALMALINUX8-HTTPD-5612877
- published 28 May 2023
- disclosed 6 Apr 2023
Introduced: 6 Apr 2023
CVE-2023-25690 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:8 httpd:2.4/mod_md to version 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa or higher.
This issue was patched in ALSA-2023:1673.
NVD Description
Note: Versions mentioned in the description apply only to the upstream httpd:2.4/mod_md package and not the httpd:2.4/mod_md package as distributed by AlmaLinux.
See How to fix? for AlmaLinux:8 relevant fixed versions and status.
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.
References
- https://errata.almalinux.org/9/ALSA-2023-1670.html
- https://errata.almalinux.org/8/ALSA-2023-1673.html
- https://access.redhat.com/security/cve/CVE-2023-25690
- https://access.redhat.com/errata/RHSA-2023:1670
- https://access.redhat.com/errata/RHSA-2023:1673
- 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
- http://packetstormsecurity.com/files/176334/Apache-2.4.55-mod_proxy-HTTP-Request-Smuggling.html