CVE-2011-4317

MEDIUM

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.

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

http://kb.juniper.net/JSA10585

http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html

http://lists.opensuse.org/opensuse-updates/2013-02/msg00009.html

http://lists.opensuse.org/opensuse-updates/2013-02/msg00012.html

http://marc.info/?l=bugtraq&m=133294460209056&w=2

http://marc.info/?l=bugtraq&m=134987041210674&w=2

http://rhn.redhat.com/errata/RHSA-2012-0128.html

http://secunia.com/advisories/48551

http://support.apple.com/kb/HT5501

http://thread.gmane.org/gmane.comp.apache.devel/46440

http://www.debian.org/security/2012/dsa-2405

http://www.mandriva.com/security/advisories?name=MDVSA-2012:003

http://www.mandriva.com/security/advisories?name=MDVSA-2013:150

http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html

http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html

http://www.securitytracker.com/id?1026353

https://bugzilla.redhat.com/show_bug.cgi?id=756483

https://community.qualys.com/blogs/securitylabs/2011/11/23/apache-reverse-proxy-bypass-issue

Details

Source: MITRE

Published: 2011-11-30

Updated: 2018-01-09

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM