[Full-disclosure] AST-2012-003: Stack Buffer Overflow in HTTP Manager



Asterisk Project Security Advisory - AST-2012-003

Product Asterisk
Summary Stack Buffer Overflow in HTTP Manager
Nature of Advisory Exploitable Stack Buffer Overflow
Susceptibility Remote Unauthenticated Sessions
Severity Critical
Exploits Known No
Reported On 03/15/2012
Reported By Russell Bryant
Posted On 03/15/2012
Last Updated On March 15, 2012
Advisory Contact Matt Jordan < mjordan AT digium DOT com >
CVE Name

Description An attacker attempting to connect to an HTTP session of the
Asterisk Manager Interface can send an arbitrarily long
string value for HTTP Digest Authentication. This causes a
stack buffer overflow, with the possibility of remote code
injection.

Resolution Upgrade to one of the versions of Asterisk listed in the
"Corrected In" section, or apply a patch specified in the
"Patches" section.

Affected Versions
Product Release Series
Asterisk Open Source 1.8.x All versions
Asterisk Open Source 10.x All versions

Corrected In
Product Release
Asterisk Open Source 1.8.10.1
Asterisk Open Source 10.2.1

Patches
SVN URL Revision
http://downloads.asterisk.org/pub/security/AST-2012-003-1.8.diff v1.8
http://downloads.asterisk.org/pub/security/AST-2012-003-10.diff v10

Links https://issues.asterisk.org/jira/browse/ASTERISK-19542

Asterisk Project Security Advisories are posted at
http://www.asterisk.org/security

This document may be superseded by later versions; if so, the latest
version will be posted at http://downloads.digium.com/pub/security/.pdf
and http://downloads.digium.com/pub/security/.html

Revision History
Date Editor Revisions Made
03-15-2012 Matt Jordan Initial release

Asterisk Project Security Advisory - AST-2012-003
Copyright (c) 2012 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.

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