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.
CVE-2011-4317 is a security vulnerability that . Impacting 1 product from apache organizations running these solutions should prioritize assessment and patching.
Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2011-11-30T04:05:58.670
2025-04-11T00:51:21.963
Deferred
CVSSv2: 4.3 (MEDIUM)
AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | apache | http_server | 1.3 | Yes |
| Application | apache | http_server | 1.3.0 | Yes |
| Application | apache | http_server | 1.3.1 | Yes |
| Application | apache | http_server | 1.3.1.1 | Yes |
| Application | apache | http_server | 1.3.2 | Yes |
| Application | apache | http_server | 1.3.3 | Yes |
| Application | apache | http_server | 1.3.4 | Yes |
| Application | apache | http_server | 1.3.5 | Yes |
| Application | apache | http_server | 1.3.6 | Yes |
| Application | apache | http_server | 1.3.7 | Yes |
| Application | apache | http_server | 1.3.8 | Yes |
| Application | apache | http_server | 1.3.9 | Yes |
| Application | apache | http_server | 1.3.10 | Yes |
| Application | apache | http_server | 1.3.11 | Yes |
| Application | apache | http_server | 1.3.12 | Yes |
| Application | apache | http_server | 1.3.13 | Yes |
| Application | apache | http_server | 1.3.14 | Yes |
| Application | apache | http_server | 1.3.15 | Yes |
| Application | apache | http_server | 1.3.16 | Yes |
| Application | apache | http_server | 1.3.17 | Yes |
| Application | apache | http_server | 1.3.18 | Yes |
| Application | apache | http_server | 1.3.19 | Yes |
| Application | apache | http_server | 1.3.20 | Yes |
| Application | apache | http_server | 1.3.22 | Yes |
| Application | apache | http_server | 1.3.23 | Yes |
| Application | apache | http_server | 1.3.24 | Yes |
| Application | apache | http_server | 1.3.25 | Yes |
| Application | apache | http_server | 1.3.26 | Yes |
| Application | apache | http_server | 1.3.27 | Yes |
| Application | apache | http_server | 1.3.28 | Yes |
| Application | apache | http_server | 1.3.29 | Yes |
| Application | apache | http_server | 1.3.30 | Yes |
| Application | apache | http_server | 1.3.31 | Yes |
| Application | apache | http_server | 1.3.32 | Yes |
| Application | apache | http_server | 1.3.33 | Yes |
| Application | apache | http_server | 1.3.34 | Yes |
| Application | apache | http_server | 1.3.35 | Yes |
| Application | apache | http_server | 1.3.36 | Yes |
| Application | apache | http_server | 1.3.37 | Yes |
| Application | apache | http_server | 1.3.38 | Yes |
| Application | apache | http_server | 1.3.39 | Yes |
| Application | apache | http_server | 1.3.41 | Yes |
| Application | apache | http_server | 1.3.42 | Yes |
| Application | apache | http_server | 1.3.65 | Yes |
| Application | apache | http_server | 1.3.68 | Yes |
| Application | apache | http_server | 2.0 | Yes |
| Application | apache | http_server | 2.0.9 | Yes |
| Application | apache | http_server | 2.0.28 | Yes |
| Application | apache | http_server | 2.0.28 | Yes |
| Application | apache | http_server | 2.0.32 | Yes |
| Application | apache | http_server | 2.0.32 | Yes |
| Application | apache | http_server | 2.0.34 | Yes |
| Application | apache | http_server | 2.0.35 | Yes |
| Application | apache | http_server | 2.0.36 | Yes |
| Application | apache | http_server | 2.0.37 | Yes |
| Application | apache | http_server | 2.0.38 | Yes |
| Application | apache | http_server | 2.0.39 | Yes |
| Application | apache | http_server | 2.0.40 | Yes |
| Application | apache | http_server | 2.0.41 | Yes |
| Application | apache | http_server | 2.0.42 | Yes |
| Application | apache | http_server | 2.0.43 | Yes |
| Application | apache | http_server | 2.0.44 | Yes |
| Application | apache | http_server | 2.0.45 | Yes |
| Application | apache | http_server | 2.0.46 | Yes |
| Application | apache | http_server | 2.0.47 | Yes |
| Application | apache | http_server | 2.0.48 | Yes |
| Application | apache | http_server | 2.0.49 | Yes |
| Application | apache | http_server | 2.0.50 | Yes |
| Application | apache | http_server | 2.0.51 | Yes |
| Application | apache | http_server | 2.0.52 | Yes |
| Application | apache | http_server | 2.0.53 | Yes |
| Application | apache | http_server | 2.0.54 | Yes |
| Application | apache | http_server | 2.0.55 | Yes |
| Application | apache | http_server | 2.0.56 | Yes |
| Application | apache | http_server | 2.0.57 | Yes |
| Application | apache | http_server | 2.0.58 | Yes |
| Application | apache | http_server | 2.0.59 | Yes |
| Application | apache | http_server | 2.0.60 | Yes |
| Application | apache | http_server | 2.0.61 | Yes |
| Application | apache | http_server | 2.0.63 | Yes |
| Application | apache | http_server | 2.0.64 | Yes |
| Application | apache | http_server | 2.2.0 | Yes |
| Application | apache | http_server | 2.2.1 | Yes |
| Application | apache | http_server | 2.2.2 | Yes |
| Application | apache | http_server | 2.2.3 | Yes |
| Application | apache | http_server | 2.2.4 | Yes |
| Application | apache | http_server | 2.2.6 | Yes |
| Application | apache | http_server | 2.2.8 | Yes |
| Application | apache | http_server | 2.2.9 | Yes |
| Application | apache | http_server | 2.2.10 | Yes |
| Application | apache | http_server | 2.2.11 | Yes |
| Application | apache | http_server | 2.2.12 | Yes |
| Application | apache | http_server | 2.2.13 | Yes |
| Application | apache | http_server | 2.2.14 | Yes |
| Application | apache | http_server | 2.2.15 | Yes |
| Application | apache | http_server | 2.2.16 | Yes |
| Application | apache | http_server | 2.2.18 | Yes |
| Application | apache | http_server | 2.2.19 | Yes |
| Application | apache | http_server | 2.2.20 | Yes |
| Application | apache | http_server | 2.2.21 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.