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Vulnerability Details : CVE-2011-3607

Integer overflow in the ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, allows local users to gain privileges via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, leading to a heap-based buffer overflow.
Publish Date : 2011-11-08 Last Update Date : 2013-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
4.4
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) OverflowGain privileges
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
4.4
AV:L/AC:M/Au:N/C:P/I:P/A:P 2011-11-02 2011-11-02
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-3607 oval:org.opensuse.security:def:20113607 unix
ELSA-2012:0128: httpd security update (Moderate) oval:org.mitre.oval:def:23836 unix
ELSA-2012:0323: httpd security update (Moderate) oval:org.mitre.oval:def:22998 unix
HP-UX Running Apache, Remote Denial of Service (DoS), Local Increase of Privilege oval:org.mitre.oval:def:19686 unix
RHSA-2012:0128: httpd security update (Moderate) oval:org.mitre.oval:def:20843 unix
RHSA-2012:0128: httpd security update (Moderate) oval:com.redhat.rhsa:def:20120128 unix
RHSA-2012:0323: httpd security update (Moderate) oval:org.mitre.oval:def:21189 unix
RHSA-2012:0323: httpd security update (Moderate) oval:com.redhat.rhsa:def:20120323 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-3607

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server 2.0 Version Details Vulnerabilities
2 Application Apache Http Server 2.0.9 Version Details Vulnerabilities
3 Application Apache Http Server 2.0.28 Beta Version Details Vulnerabilities
4 Application Apache Http Server 2.0.28 Version Details Vulnerabilities
5 Application Apache Http Server 2.0.32 Beta Version Details Vulnerabilities
6 Application Apache Http Server 2.0.32 Version Details Vulnerabilities
7 Application Apache Http Server 2.0.34 Beta Version Details Vulnerabilities
8 Application Apache Http Server 2.0.35 Version Details Vulnerabilities
9 Application Apache Http Server 2.0.36 Version Details Vulnerabilities
10 Application Apache Http Server 2.0.37 Version Details Vulnerabilities
11 Application Apache Http Server 2.0.38 Version Details Vulnerabilities
12 Application Apache Http Server 2.0.39 Version Details Vulnerabilities
13 Application Apache Http Server 2.0.40 Version Details Vulnerabilities
14 Application Apache Http Server 2.0.41 Version Details Vulnerabilities
15 Application Apache Http Server 2.0.42 Version Details Vulnerabilities
16 Application Apache Http Server 2.0.43 Version Details Vulnerabilities
17 Application Apache Http Server 2.0.44 Version Details Vulnerabilities
18 Application Apache Http Server 2.0.45 Version Details Vulnerabilities
19 Application Apache Http Server 2.0.46 Version Details Vulnerabilities
20 Application Apache Http Server 2.0.47 Version Details Vulnerabilities
21 Application Apache Http Server 2.0.48 Version Details Vulnerabilities
22 Application Apache Http Server 2.0.49 Version Details Vulnerabilities
23 Application Apache Http Server 2.0.50 Version Details Vulnerabilities
24 Application Apache Http Server 2.0.51 Version Details Vulnerabilities
25 Application Apache Http Server 2.0.52 Version Details Vulnerabilities
26 Application Apache Http Server 2.0.53 Version Details Vulnerabilities
27 Application Apache Http Server 2.0.54 Version Details Vulnerabilities
28 Application Apache Http Server 2.0.55 Version Details Vulnerabilities
29 Application Apache Http Server 2.0.56 Version Details Vulnerabilities
30 Application Apache Http Server 2.0.57 Version Details Vulnerabilities
31 Application Apache Http Server 2.0.58 Version Details Vulnerabilities
32 Application Apache Http Server 2.0.59 Version Details Vulnerabilities
33 Application Apache Http Server 2.0.60 Version Details Vulnerabilities
34 Application Apache Http Server 2.0.61 Version Details Vulnerabilities
35 Application Apache Http Server 2.0.63 Version Details Vulnerabilities
36 Application Apache Http Server 2.0.64 Version Details Vulnerabilities
37 Application Apache Http Server 2.2.0 Version Details Vulnerabilities
38 Application Apache Http Server 2.2.1 Version Details Vulnerabilities
39 Application Apache Http Server 2.2.2 Version Details Vulnerabilities
40 Application Apache Http Server 2.2.3 Version Details Vulnerabilities
41 Application Apache Http Server 2.2.4 Version Details Vulnerabilities
42 Application Apache Http Server 2.2.6 Version Details Vulnerabilities
43 Application Apache Http Server 2.2.8 Version Details Vulnerabilities
44 Application Apache Http Server 2.2.9 Version Details Vulnerabilities
45 Application Apache Http Server 2.2.10 Version Details Vulnerabilities
46 Application Apache Http Server 2.2.11 Version Details Vulnerabilities
47 Application Apache Http Server 2.2.12 Version Details Vulnerabilities
48 Application Apache Http Server 2.2.13 Version Details Vulnerabilities
49 Application Apache Http Server 2.2.14 Version Details Vulnerabilities
50 Application Apache Http Server 2.2.15 Version Details Vulnerabilities
51 Application Apache Http Server 2.2.16 Version Details Vulnerabilities
52 Application Apache Http Server 2.2.18 Version Details Vulnerabilities
53 Application Apache Http Server 2.2.19 Version Details Vulnerabilities
54 Application Apache Http Server 2.2.20 Version Details Vulnerabilities
55 Application Apache Http Server 2.2.21 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 55

- References For CVE-2011-3607

http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
APPLE APPLE-SA-2012-09-19-2
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
HP SSRT100877
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/DemoExploit.html
http://secunia.com/advisories/45793
SECUNIA 45793
http://rhn.redhat.com/errata/RHSA-2012-0128.html
REDHAT RHSA-2012:0128
http://marc.info/?l=bugtraq&m=134987041210674&w=2
HP SSRT100966
http://secunia.com/advisories/48551
SECUNIA 48551
http://securitytracker.com/id?1026267
SECTRACK 1026267
http://support.apple.com/kb/HT5501 CONFIRM
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
MANDRIVA MDVSA-2013:150
http://www.mandriva.com/security/advisories?name=MDVSA-2012:003
MANDRIVA MDVSA-2012:003
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html CONFIRM
http://archives.neohapsis.com/archives/fulldisclosure/2011-11/0023.html
FULLDISC 20111102 Integer Overflow in Apache ap_pregsub via mod-setenvif
http://www.securityfocus.com/bid/50494
BID 50494 Apache HTTP Server 'ap_pregsub()' Function Local Privilege Escalation Vulnerability Release Date:2013-11-27
http://www.osvdb.org/76744
OSVDB 76744
http://xforce.iss.net/xforce/xfdb/71093
XF apache-http-appregsub-bo(71093)
https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/811422 CONFIRM
http://www.halfdog.net/Security/2011/ApacheModSetEnvIfIntegerOverflow/
https://bugzilla.redhat.com/show_bug.cgi?id=750935 CONFIRM

- Metasploit Modules Related To CVE-2011-3607

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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