Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability

Bugtraq ID:	26057
Class:	Access Validation Error
CVE:	CVE-2007-5468 CVE-2007-5469
Remote:	Yes
Local:	No
Published:	Oct 12 2007 12:00AM
Updated:	Oct 26 2007 08:16PM
Credit:	Humberto J. Abdelnur, Radu State and Olivier Festor are credited with the discovery of this vulnerability.
Vulnerable:	OpenSER OpenSER 1.2.2 Cisco Unified Communications Manager 5.1(1) Cisco Unified CallManager 5.1 Cisco Call Manager 5.1
Not Vulnerable:

Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability

CallManager and Openser are prone to a remote unauthorized-access vulnerability that may lead to toll fraud and caller-ID spoofing.

A remote attacker can exploit this issue to initiate unauthorized phone calls and pretend to be a legitimate user.

Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability

The researchers who discovered this vulnerability report that proof-of-concept code is available upon request. Please see the references for more information.

Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: mailto:[email protected].

Cisco CallManager and Openser SIP Remote Unauthorized Access Vulnerability

References:

• CallManager and OpeSer toll fraud and authentication forward attack (Radu State ([email protected]))
  
• CallManager Product Homepage (Cisco Systems)
  
• OpenSER SIP Server Homepage (OpenSER)