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Apache mod_access Rule Bypass Issue
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Secunia Advisory:
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SA11088
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Release Date:
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2004-03-10
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Last Update:
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2004-05-10
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Critical:
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Less critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Apache 1.3.x
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| | CVE reference: | CVE-2003-0993 (Secunia mirror)
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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.
Specify rules with proper netmasks and verify that they work as intended.
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
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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