CVE-2011-4317 - CVE House
Back to Database
Status published Medium CVE-2011-4317

The mod_proxy module in the Apache HTTP Server 1.3.x through...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2011-4317

Credits & Attribution

No credits recorded in the NVD database.

References

More from apache

View All →
CVE-2025-58712
Amq: privilege escalation via excessive /etc/passwd permissions
Medium 6.4
CVE-2021-25958
Generation of Error Message Containing Sensitive Information in Apache OFBiz
Medium 6.5
CVE-2021-24117
In Apache Teaclave Rust SGX SDK 1.1.3, a side-channel vulnerability...
Medium 4.9
CVE-2020-5499
Baidu Rust SGX SDK through 1.0.8 has an enclave ID...
Critical 9.8
CVE-2018-14889
CouchDB in Vectra Networks Cognito Brain and Sensor before 4.3...
High 7.8

Affected Vendor

Affected Software

http server
Vulnerable Versions:
1.3, 1.3.0, 1.3.1, 1.3.1.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11, 1.3.12, 1.3.13, 1.3.14, 1.3.15, 1.3.16, 1.3.17, 1.3.18, 1.3.19, 1.3.20, 1.3.22, 1.3.23, 1.3.24, 1.3.25, 1.3.26, 1.3.27, 1.3.28, 1.3.29, 1.3.30, 1.3.31, 1.3.32, 1.3.33, 1.3.34, 1.3.35, 1.3.36, 1.3.37, 1.3.38, 1.3.39, 1.3.41, 1.3.42, 1.3.65, 1.3.68, 2.0, 2.0.9, 2.0.28, 2.0.32, 2.0.34, 2.0.35, 2.0.36, 2.0.37, 2.0.38, 2.0.39, 2.0.40, 2.0.41, 2.0.42, 2.0.43, 2.0.44, 2.0.45, 2.0.46, 2.0.47, 2.0.48, 2.0.49, 2.0.50, 2.0.51, 2.0.52, 2.0.53, 2.0.54, 2.0.55, 2.0.56, 2.0.57, 2.0.58, 2.0.59, 2.0.60, 2.0.61, 2.0.63, 2.0.64, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.6, 2.2.8, 2.2.9, 2.2.10, 2.2.11, 2.2.12, 2.2.13, 2.2.14, 2.2.15, 2.2.16, 2.2.18, 2.2.19, 2.2.20, 2.2.21

Timeline

Official Publish: November 30th, 2011
Last Modified: August 7th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.