CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.3. It affects Apache. Its EPSS score suggests a 59.6% probability of exploitation in the next 30 days. It may be remotely exploitable.
CVE
CVE-2011-4317
Severity
MEDIUM
CVSS
4.3
EPSS
59.60%
Apache
Original NVD Description
The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21, when the Revision 1179239 patch is in place, does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an @ (at sign) character and a : (colon) character in invalid positions. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.