Vulnerability CVE-2012-4557


Published: 2012-11-30

Description:
The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 through 2.2.21 places a worker node into an error state upon detection of a long request-processing time, which allows remote attackers to cause a denial of service (worker consumption) via an expensive request.

Vendor: Apache
Product: Http server 
Version:
2.2.21
2.2.20
2.2.19
2.2.18
2.2.17
2.2.16
2.2.15
2.2.14
2.2.13
2.2.12
Product: Apache http server 
Version:
2.2.21
2.2.20
2.2.19
2.2.18
2.2.17
2.2.16
2.2.15
2.2.14
2.2.13
2.2.12

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial

 References:
http://httpd.apache.org/security/vulnerabilities_22.html#2.2.22
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=136612293908376&w=2
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:18938
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:19284
http://svn.apache.org/viewvc?view=revision&revision=1227298
http://www.debian.org/security/2012/dsa-2579
https://bugzilla.redhat.com/show_bug.cgi?id=871685

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