Cisco CallManager and OpenSER SIP call hijacking
| callmanager-openser-sip-call-hijacking (37197) |  Medium Risk |
Description:
Cisco CallManager and OpenSER could allow a remote attacker to hijack calls, caused by the improper handling of SIP messages. By sending a specially-crafted request for a URI containing a sniffed authentication header, a remote attacker who can sniff the traffic could exploit this vulnerability to hijack the victim's call.
Platforms Affected:
- Cisco, CallManager 5.1.1.3000.5
Remedy:
For OpenSER:
Apply the fix for this vulnerability, available from the OpenSER SVN Repository. See References.
Consequences:
Gain Access
References:
- Cisco Web site, Cisco CallManager at http://www.cisco.com/warp/public/cc/pd/nemnsw/callmn/index.shtml.
- Full-Disclosure Mailing List, Fri Oct 12 2007 - 11:54:18 CDT, CallManager and OpeSer toll fraud and authentication forward attack at http://archives.neohapsis.com/archives/fulldisclosure/2007-10/0306.html.
- OpenSER SVN Repository, OpenSER at http://openser.svn.sourceforge.net/viewvc/openser/.
- OpenSER Web site, OpenSER at http://www.openser.org/.
- BID-26057: Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability
- CVE-2007-5468: Cisco CallManager 5.1.1.3000-5 does not verify the Digest authentication header URI against the Request URI in SIP messages, which allows remote attackers to use sniffed Digest authentication credentials to call arbitrary telephone numbers or spoof caller ID (aka toll fraud and authentication forward attack).
- SA27204: OpenSER Authentication Header Hijacking Security Issue
- SA27231: Cisco CallManager Authentication Header Hijacking Security Issue
- VUPEN/ADV-2007-3534: Cisco CallManager Digest Authentication Header Security Bypass Issue
Reported:
Oct 12, 2007
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net