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Message-ID: <51BA5C45.2030407@redhat.com>
Date: Thu, 13 Jun 2013 17:56:53 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Yves-Alexis Perez <corsac@...ian.org>
Subject: Re: Re: Fail2ban 0.8.9, Denial of Service (Apache
rules only)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 06/12/2013 02:00 PM, Yves-Alexis Perez wrote:
> Can someone assign a CVE for this fail2ban issue?
>
> On sam., 2013-06-08 at 07:44 +0200, Krzysztof Katowicz-Kowalewski
> wrote:
>> Version 0.8.9 (latest) of Fail2ban allows to perform remote
>> denial of service for arbitrary chosen IP address. Address listed
>> on Fail2ban's whitelist are not affected. The vulnerability
>> exists in Apache rules and it is caused by improper validation of
>> a log file by regular expression. Malicious user can easily
>> inject his own data to analyzed logs and deceive monitoring
>> engine.
>>
>> Affected files: /filter.d/apache-auth.conf
>> /filter.d/apache-nohome.conf /filter.d/apache-noscript.conf
>> /filter.d/apache-overflows.conf
>>
>> Time frames: 01.06.2013 - Cyril Jaquier (contact section) has
>> been informed about the vulnerability (no response) 08.06.2013 -
>> The vulnerability has been released to the public.
>>
>> More information, including proof of concept and patches is
>> available here:
>> https://vndh.net/note:fail2ban-089-denial-service
>
> Thanks in advance,
>
Please use CVE-2013-2178 for this issue.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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