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Vulnerability Details : CVE-2012-0021

The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Publish Date : 2012-01-27 Last Update Date : 2013-10-10
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- CVSS Scores & Vulnerability Types

CVSS Score
2.6
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P 2012-01-26 2011-11-28
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- Related OVAL Definitions

Title Definition Id Class Family
HP-UX Running Apache, Remote Denial of Service (DoS), Local Increase of Privilege oval:org.mitre.oval:def:19817 unix
SUSE-SU-2013:0389-1 -- Security update for Apache oval:org.mitre.oval:def:25561 unix
SUSE-SU-2013:0469-1 -- Security update for apache2 oval:org.mitre.oval:def:26047 unix
SUSE-SU-2013:0830-1 -- Security update for Apache oval:org.mitre.oval:def:25484 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-2012-0021

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server 2.2.17 Version Details Vulnerabilities
2 Application Apache Http Server 2.2.18 Version Details Vulnerabilities
3 Application Apache Http Server 2.2.19 Version Details Vulnerabilities
4 Application Apache Http Server 2.2.20 Version Details Vulnerabilities
5 Application Apache Http Server 2.2.21 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 5

- References For CVE-2012-0021

http://httpd.apache.org/security/vulnerabilities_22.html CONFIRM
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
MANDRIVA MDVSA-2013:150
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
HP HPSBMU02786
https://issues.apache.org/bugzilla/show_bug.cgi?id=52256 CONFIRM
http://svn.apache.org/viewvc?view=revision&revision=1227292 CONFIRM
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
APPLE APPLE-SA-2012-09-19-2
http://support.apple.com/kb/HT5501 CONFIRM
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=785065 CONFIRM
http://secunia.com/advisories/48551
SECUNIA 48551

- Metasploit Modules Related To CVE-2012-0021

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


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