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.
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:*:*:*:*:*:*:*:*
Threat overview for CVE-2011-3639
Top countries where our scanners detected CVE-2011-3639
Top open port discovered on systems with this issue
80
IPs affected by CVE-2011-3639 781,257
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-3639!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-3639
15.95%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 94 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-3639
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST |
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: nvd@nist.gov (Primary)
References for CVE-2011-3639
-
http://svn.apache.org/viewvc?view=revision&revision=1188745
[Apache-SVN] Revision 1188745
-
http://www.debian.org/security/2012/dsa-2405
Debian -- Security Information -- DSA-2405-1 apache2
-
https://bugzilla.redhat.com/show_bug.cgi?id=752080
752080 – (CVE-2011-3639) CVE-2011-3639 httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix
-
http://rhn.redhat.com/errata/RHSA-2012-0128.html
RHSA-2012:0128 - Security Advisory - Red Hat Customer Portal
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