Vulnerability Details : CVE-2011-4317
Potential exploit
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.
Vulnerability category: Input validation
Products affected by CVE-2011-4317
- cpe:2.3:a:apache:http_server:1.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.25:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.24:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.26:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.27:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
- 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:1.3.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.13:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.15:*:*:*:*:*:*:*
- 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:2.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.28:*:*:*:*:*:*:*
- 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:1.3.29:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.31:*:*:*:*:*:*:*
- 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:1.3.32:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.33:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.53:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.30:*:*:*:*:*:*:*
- 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:2.0.32:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.34:beta:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.60:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.37:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.34:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.36:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.38:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.42:*:*:*:*:*:*:*
- 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:1.3.68:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.1.1:*:*:*:*:*:*:*
- 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:1.3.35:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.41:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.65:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.63:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.39:*:*:*:*:*:*:*
- 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:2.2.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.64:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.21:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.2.20:*:*:*:*:*:*:*
Threat overview for CVE-2011-4317
Top countries where our scanners detected CVE-2011-4317
Top open port discovered on systems with this issue
80
IPs affected by CVE-2011-4317 899,400
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2011-4317!
*Directly or indirectly through your vendors, service providers and 3rd parties.
Powered by
attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2011-4317
90.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4317
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-2011-4317
-
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-2011-4317
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https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f@%3Ccvs.httpd.apache.org%3E
svn commit: r1075470 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2
-
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b@%3Ccvs.httpd.apache.org%3E
svn commit: r1073140 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html s
-
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
Apple - Lists.apple.com
-
http://www.securitytracker.com/id?1026353
Apache mod_proxy/mod_rewrite Bug Lets Remote Users Access Internal Servers - SecurityTracker
-
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
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https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53@%3Ccvs.httpd.apache.org%3E
svn commit: r1048742 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
-
https://community.qualys.com/blogs/securitylabs/2011/11/23/apache-reverse-proxy-bypass-issue
404 Page Not Found | Qualys, Inc.Exploit
-
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064@%3Ccvs.httpd.apache.org%3E
svn commit: r1073146 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities-httpd.xml security/vulnerabilities_22.html security/vulnerabilities_24.html
-
https://lists.apache.org/thread.html/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729@%3Ccvs.httpd.apache.org%3E
svn commit: r1073139 [8/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ - Pony Mail
-
https://lists.apache.org/thread.html/r1d201e3da31a2c8aa870c8314623caef7debd74a13d0f25205e26f15@%3Ccvs.httpd.apache.org%3E
svn commit: r1073149 [8/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ - Pony Mail
-
https://lists.apache.org/thread.html/r05b5357d1f6bd106f41541ee7d87aafe3f5ea4dc3e9bde5ce09baff8@%3Ccvs.httpd.apache.org%3E
svn commit: r1888194 [8/13] - /httpd/site/trunk/content/security/json/ - Pony Mail
-
http://thread.gmane.org/gmane.comp.apache.devel/46440
Exploit
-
http://www.debian.org/security/2012/dsa-2405
Debian -- Security Information -- DSA-2405-1 apache2
-
http://kb.juniper.net/JSA10585
Juniper Networks - 2013-08 Security Bulletin: Junos Space: Multiple Vulnerabilities
-
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
Oracle Critical Patch Update - July 2012
-
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ - Pony Mail
-
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a@%3Ccvs.httpd.apache.org%3E
svn commit: r1075467 [2/2] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2
-
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
mandriva.com
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http://lists.opensuse.org/opensuse-updates/2013-02/msg00009.html
openSUSE-SU-2013:0243-1: moderate: update for apache2
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http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
Oracle Critical Patch Update - January 2015
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https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
Pony Mail!
-
http://marc.info/?l=bugtraq&m=133294460209056&w=2
'[security bulletin] HPSBMU02748 SSRT100772 rev.1 - HP OpenView Network Node Manager (OV NNM) Running' - MARC
-
https://bugzilla.redhat.com/show_bug.cgi?id=756483
756483 – (CVE-2011-4317) CVE-2011-4317 httpd: uri scheme bypass of the reverse proxy vulnerability CVE-2011-3368 fix
-
http://marc.info/?l=bugtraq&m=134987041210674&w=2
'[security bulletin] HPSBOV02822 SSRT100966 rev.1 - HP Secure Web Server (SWS) for OpenVMS, Remote De' - MARC
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https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7@%3Ccvs.httpd.apache.org%3E
Pony Mail!
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https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24@%3Ccvs.httpd.apache.org%3E
svn commit: r1075360 [2/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_2
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http://rhn.redhat.com/errata/RHSA-2012-0128.html
RHSA-2012:0128 - Security Advisory - Red Hat Customer Portal
-
http://support.apple.com/kb/HT5501
About the security content of OS X Mountain Lion v10.8.2, OS X Lion v10.7.5 and Security Update 2012-004 - Apple Support
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http://lists.opensuse.org/opensuse-updates/2013-02/msg00012.html
openSUSE-SU-2013:0248-1: moderate: update for apache2
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https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f@%3Ccvs.httpd.apache.org%3E
svn commit: r1048743 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
-
http://www.mandriva.com/security/advisories?name=MDVSA-2012:003
mandriva.com
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https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b@%3Ccvs.httpd.apache.org%3E
svn commit: r1058587 [3/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_
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