BugTraq
AST-2009-007: ACL not respected on SIP INVITE Oct 26 2009 08:26PM
Asterisk Security Team (security asterisk org)
Asterisk Project Security Advisory - AST-2009-007

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| Product | Asterisk |
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| Summary | ACL not respected on SIP INVITE |
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| Nature of Advisory | Unauthorized calls allowed on prohibited networks |
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| Susceptibility | Remote unauthorized session |
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| Severity | Critical |
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| Exploits Known | No |
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| Reported On | October 18, 2009 |
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| Reported By | Thomas Athineou <thom_winkler AT web DOT de> |
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| Posted On | October 26, 2009 |
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| Last Updated On | October 26, 2009 |
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| Advisory Contact | Jeff Peeler <jpeeler AT digium DOT com> |
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| CVE Name | |
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| Description | A missing ACL check for handling SIP INVITEs allows a |
| | device to make calls on networks intended to be |
| | prohibited as defined by the "deny" and "permit" lines |
| | in sip.conf. The ACL check for handling SIP |
| | registrations was not affected. |
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| Resolution | Users should upgrade to a version listed in the |
| | "Corrected In" section below. |
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| Affected Versions |
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| Product | Release Series | |
|-------------------------------+----------------+----------------------
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| Asterisk Open Source | 1.2.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Open Source | 1.4.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Open Source | 1.6.x | All 1.6.1 versions |
|-------------------------------+----------------+----------------------
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| Asterisk Addons | 1.2.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Addons | 1.4.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Addons | 1.6.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Business Edition | A.x.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Business Edition | B.x.x | Unaffected |
|-------------------------------+----------------+----------------------
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| Asterisk Business Edition | C.x.x | Unaffected |
|-------------------------------+----------------+----------------------
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| AsteriskNOW | 1.5 | Unaffected |
|-------------------------------+----------------+----------------------
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| s800i (Asterisk Appliance) | 1.2.x | Unaffected |
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| Corrected In |
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| Product | Release |
|---------------------------------------------+-------------------------
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| Open Source Asterisk 1.6.1 | 1.6.1.8 |
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| Patches |
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| SVN URL |Version|
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|http://downloads.digium.com/pub/security/AST-2009-007-1.6.1.diff.txt| 1.6.1 |
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| Links | |
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| 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-2009-007.pdf and |
| http://downloads.digium.com/pub/security/AST-2009-007.html |
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| Revision History |
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| Date | Editor | Revisions Made |
|------------------------+------------------+---------------------------
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| October 26, 2009 | Jeff Peeler | Initial release |
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Asterisk Project Security Advisory - AST-2009-007
Copyright (c) 2009 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.

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