Vulnerability Details : CVE-2011-3639
The mod_proxy module in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x before 2.2.18, 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 by using the HTTP/0.9 protocol with a malformed URI containing an initial @ (at sign) character. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-3368.
Vulnerability category: Input validation
Exploit prediction scoring system (EPSS) score for CVE-2011-3639
Probability of exploitation activity in the next 30 days: 2.83%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 89 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2011-3639
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
[email protected] |
CWE ids for CVE-2011-3639
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: [email protected] (Primary)
References for CVE-2011-3639
Products affected by CVE-2011-3639
- cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.48:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.49:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.50:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.51:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.52:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.53:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.54:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.55:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.56:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.57:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.58:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.59:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.61:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.63:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.31:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.24:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.15:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.34:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.33:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.26:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.25:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.30:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.29:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.21:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.27:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a9:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a8:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a7:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a6:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a5:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a4:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a3:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a2:*:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server2.0a1:*:*:*:*:*:*:*:*