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
Configurations
History
02 Jan 2024, 16:15
Type | Values Removed | Values Added |
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References |
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25 Apr 2023, 00:15
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Summary | 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 |
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14 Mar 2023, 15:41
Type | Values Removed | Values Added |
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References | (MISC) https://httpd.apache.org/security/vulnerabilities_24.html - Vendor Advisory | |
CPE | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
07 Mar 2023, 16:37
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2023-03-07 16:15
Updated : 2024-02-04 23:14
NVD link : CVE-2023-25690
Mitre link : CVE-2023-25690
CVE.ORG link : CVE-2023-25690
JSON object : View
Products Affected
apache
- http_server
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')