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Message-Id: <E1YGc35-0004Q6-Vm@mail.digium.com>
Date: Wed, 28 Jan 2015 17:29:27 -0600
From: "Asterisk Security Team" <security@...erisk.org>
To: fulldisclosure@...lists.org
Subject: [FD] AST-2015-002: Mitigation for libcURL HTTP request injection
vulnerability
Asterisk Project Security Advisory - AST-2015-002
Product Asterisk
Summary Mitigation for libcURL HTTP request injection
vulnerability
Nature of Advisory HTTP request injection
Susceptibility Remote Authenticated Sessions
Severity Major
Exploits Known No
Reported On 12 January, 2015
Reported By Olle Johansson
Posted On January 12, 2015
Last Updated On January 28, 2015
Advisory Contact Mark Michelson <mmichelson AT digium DOT com>
CVE Name N/A.
Description CVE-2014-8150 reported an HTTP request injection
vulnerability in libcURL. Asterisk uses libcURL in its
func_curl.so module (the CURL() dialplan function), as well
as its res_config_curl.so (cURL realtime backend) modules.
Since Asterisk may be configured to allow for user-supplied
URLs to be passed to libcURL, it is possible that an
attacker could use Asterisk as an attack vector to inject
unauthorized HTTP requests if the version of libcURL
installed on the Asterisk server is affected by
CVE-2014-8150.
Resolution Asterisk has been patched with a similar patch as libcURL
was for CVE-2014-8150. This means that carriage return and
linefeed characters are forbidden from being in HTTP URLs
that will be passed to libcURL.
Affected Versions
Product Release
Series
Asteris Open Source 1.8.x All versions
Asterisk Open Source 11.x All versions
Asterisk Open Source 12.x All versions
Asterisk Open Source 13.x All versions
Certified Asterisk 1.8.28 All versions
Certified Asterisk 11.6 All versions
Corrected In
Product Release
Asterisk Open Source 1.8.32.2, 11.15.1, 12.8.1, 13.1.1
Certified Asterisk 1.8.28-cert4, 11.6-cert10
Patches
SVN URL Revision
http://downloads.asterisk.org/pub/security/AST-2015-002-1.8.28.diff Certified
Asterisk
1.8.28
http://downloads.asterisk.org/pub/security/AST-2015-002-11.6.diff Certified
Asterisk
11.6
http://downloads.asterisk.org/pub/security/AST-2015-002-1.8.diff Asterisk
1.8
http://downloads.asterisk.org/pub/security/AST-2015-002-11.diff Asterisk
11
http://downloads.asterisk.org/pub/security/AST-2015-002-12.diff Asterisk
12
http://downloads.asterisk.org/pub/security/AST-2015-002-13.diff Asterisk
13
Links https://issues.asterisk.org/jira/browse/ASTERISK-24676
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/AST-2015-002.pdf and
http://downloads.digium.com/pub/security/AST-2015-002.html
Revision History
Date Editor Revisions Made
21 January, 2015 Mark Michelson Initial creation of document
Asterisk Project Security Advisory - AST-2015-002
Copyright (c) 2015 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.
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