(Gentoo Issues Fix) Apache mod_include Buffer Overflow Lets Local Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1012044 |
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SecurityTracker URL: http://securitytracker.com/id/1012044
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CVE Reference:
CVE-2004-0940
(Links to External Site)
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Date: Nov 2 2004
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Impact:
Execution of arbitrary code via local system, User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 1.3.x
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Description:
Crazy Einstein reported a buffer overflow in Apache mod_include. A local user may be able to gain elevated privileges.
It is reported that the get_tag() function contains a buffer overflow that can be triggered, for example, from the handle_echo() function. A local user can create specially crafted HTML that, when processed by Apache, will execute arbitrary code with the privileges of the httpd child process.
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Impact:
A local user can execute arbitrary code with the privileges of the Apache httpd child process.
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Solution:
Gentoo has released a fix and indicates that all Apache users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-www/apache-1.3.32-r1"
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Vendor URL: httpd.apache.org/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Gentoo)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Tue, 02 Nov 2004 14:35:02 +0100
Subject: [gentoo-announce] [ GLSA 200411-03 ] Apache 1.3: Buffer overflow vulnerability in mod_include
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
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Gentoo Linux Security Advisory GLSA 200411-03
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http://security.gentoo.org/
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Severity: Normal
Title: Apache 1.3: Buffer overflow vulnerability in mod_include
Date: November 02, 2004
Bugs: #68564
ID: 200411-03
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Synopsis
========
A buffer overflow vulnerability exists in mod_include which could
possibly allow a local attacker to gain escalated privileges.
Background
==========
The Apache HTTP server is one of the most popular web servers on the
internet. mod_include is an Apache module to handle Server Side
Includes (SSI).
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-www/apache < 1.3.32-r1 >= 1.3.32-r1
Description
===========
A possible buffer overflow exists in the get_tag() function of
mod_include.c.
Impact
======
If Server Side Includes (SSI) are enabled, a local attacker may be able
to run arbitrary code with the rights of an httpd child process by
making use of a specially-crafted document with malformed SSI.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Apache users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-www/apache-1.3.32-r1"
References
==========
[ 1 ] CAN-2004-0940
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0940
[ 2 ] Security vulnerabilities in Apache httpd 1.3
http://www.apacheweek.com/features/security-13
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-03.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
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