Amazon Linux 2023 Security Advisory: ALAS-2023-136
Advisory Release Date: 2023-03-20 18:27 Pacific
Advisory Updated Date: 2023-03-22 23:25 Pacific
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. (CVE-2023-25690)
HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can truncate/split the response forwarded to the client. (CVE-2023-27522)
Affected Packages:
httpd
Issue Correction:
Run dnf update --releasever=2023.0.20230322 httpd to update your system.
aarch64:
mod_ldap-debuginfo-2.4.56-1.amzn2023.aarch64
mod_proxy_html-debuginfo-2.4.56-1.amzn2023.aarch64
mod_lua-2.4.56-1.amzn2023.aarch64
mod_session-2.4.56-1.amzn2023.aarch64
httpd-tools-2.4.56-1.amzn2023.aarch64
httpd-tools-debuginfo-2.4.56-1.amzn2023.aarch64
mod_ldap-2.4.56-1.amzn2023.aarch64
httpd-debuginfo-2.4.56-1.amzn2023.aarch64
mod_proxy_html-2.4.56-1.amzn2023.aarch64
httpd-debugsource-2.4.56-1.amzn2023.aarch64
mod_ssl-debuginfo-2.4.56-1.amzn2023.aarch64
httpd-core-2.4.56-1.amzn2023.aarch64
mod_session-debuginfo-2.4.56-1.amzn2023.aarch64
httpd-2.4.56-1.amzn2023.aarch64
mod_ssl-2.4.56-1.amzn2023.aarch64
mod_lua-debuginfo-2.4.56-1.amzn2023.aarch64
httpd-devel-2.4.56-1.amzn2023.aarch64
httpd-core-debuginfo-2.4.56-1.amzn2023.aarch64
noarch:
httpd-filesystem-2.4.56-1.amzn2023.noarch
httpd-manual-2.4.56-1.amzn2023.noarch
src:
httpd-2.4.56-1.amzn2023.src
x86_64:
mod_session-debuginfo-2.4.56-1.amzn2023.x86_64
httpd-devel-2.4.56-1.amzn2023.x86_64
mod_ldap-debuginfo-2.4.56-1.amzn2023.x86_64
mod_ssl-debuginfo-2.4.56-1.amzn2023.x86_64
mod_lua-2.4.56-1.amzn2023.x86_64
httpd-debugsource-2.4.56-1.amzn2023.x86_64
httpd-debuginfo-2.4.56-1.amzn2023.x86_64
mod_ldap-2.4.56-1.amzn2023.x86_64
mod_proxy_html-2.4.56-1.amzn2023.x86_64
mod_lua-debuginfo-2.4.56-1.amzn2023.x86_64
mod_proxy_html-debuginfo-2.4.56-1.amzn2023.x86_64
mod_ssl-2.4.56-1.amzn2023.x86_64
httpd-tools-2.4.56-1.amzn2023.x86_64
httpd-2.4.56-1.amzn2023.x86_64
httpd-tools-debuginfo-2.4.56-1.amzn2023.x86_64
mod_session-2.4.56-1.amzn2023.x86_64
httpd-core-debuginfo-2.4.56-1.amzn2023.x86_64
httpd-core-2.4.56-1.amzn2023.x86_64