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Secunia Advisory SA11088

Apache mod_access Rule Bypass Issue
Secunia Advisory SA11088
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Release Date 2004-03-10
Last Update 2004-05-10
   
Popularity 15,725 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Security Bypass
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
   
Software:
Apache 1.3.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2003-0993 CVSS available in Customer Area
  

Description

A security issue has been reported in Apache on big-endian 64bit systems, which can be exploited by malicious people to bypass certain restrictions.

The problem is that "mod_access" fails to properly enforce IP restrictions that are defined without a proper netmask. This may allow access to restricted resources.

The issue affects Apache 1.3.29 and prior on big-endian 64bit systems. Other architectures are not affected.


Solution
The development version 1.3.31 is not vulnerable.
Further details available in Customer Area

Provided and/or discovered by
Discovered independently by the following:
* TTSG Internet Services
* Henning Brauer, OpenBSD.

Original Advisory
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23850

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Apache mod_access Rule Bypass Issue
 
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