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TITLE:
Cisco Unified Communications Manager Authentication Bypass and Denial
of Service

SECUNIA ADVISORY ID:
SA30848

VERIFY ADVISORY:
http://secunia.com/advisories/30848/

CRITICAL:
Less critical

IMPACT:
Security Bypass, Exposure of system information, Exposure of
sensitive information, DoS

WHERE:
>From local network

REVISION:
1.1 originally posted 2008-06-26

SOFTWARE:
Cisco Unified CallManager 4.x
http://secunia.com/product/12534/
Cisco Unified Communications Manager 4.x
http://secunia.com/product/5363/
Cisco Unified Communications Manager 5.x
http://secunia.com/product/11019/
Cisco Unified Communications Manager 6.x
http://secunia.com/product/14776/
Cisco Unified CallManager 5.x
http://secunia.com/product/12535/

DESCRIPTION:
A vulnerability and a security issue have been reported in Cisco
Unified Communications Manager, which can be exploited by malicious
people to bypass certain security restrictions or to cause a DoS
(Denial of Service).

1) An unspecified error in the Computer Telephony Integration (CTI)
Manager service can be exploited to cause a DoS by sending a
specially crafted packet to port 2748/TCP.

2) A security issue exists in the Real-Time Information Server (RIS)
Data Collector service, which can be exploited to bypass
authentication checks and disclose e.g. information about performance
statistics, user names, and configured IP phones.

The vulnerability and the security issue affect the following
products and versions:
* Cisco Unified CallManager 4.1 versions
* Cisco Unified Communications Manager 4.2 versions prior to
4.2(3)SR4
* Cisco Unified Communications Manager 4.3 versions prior to
4.3(2)SR1
* Cisco Unified Communications Manager 5.x versions prior to 5.1(3c)
* Cisco Unified Communications Manager 6.x versions prior to 6.1(2)

SOLUTION:
Cisco Unified Communications Manager (CUCM) version 4.1:
Upgrade to 4.2(3)SR4.

Cisco Unified Communications Manager (CUCM) version 4.2:
Update to 4.2(3)SR4.

Cisco Unified Communications Manager (CUCM) version 4.3:
Update to 4.3(2)SR1 (available approximately mid-July 2008)

Cisco Unified Communications Manager (CUCM) version 5.1:
Update to 5.1(3c).

Cisco Unified Communications Manager (CUCM) version 6.1:
Update to CUCM version 6.1(2).

PROVIDED AND/OR DISCOVERED BY:
VoIPshield

CHANGELOG:
2008-06-26: Added links to VoIPshield.

ORIGINAL ADVISORY:
Cisco:
http://www.cisco.com/warp/public/707/cisco-sa-20080625-cucm.shtml

VoIPshield:
http://www.voipshield.com/research-details.php?id=64
http://www.voipshield.com/research-details.php?id=65
http://www.voipshield.com/research-details.php?id=66
http://www.voipshield.com/research-details.php?id=67
http://www.voipshield.com/research-details.php?id=68
http://www.voipshield.com/research-details.php?id=69
http://www.voipshield.com/research-details.php?id=70
http://www.voipshield.com/research-details.php?id=71
http://www.voipshield.com/research-details.php?id=72
http://www.voipshield.com/research-details.php?id=73
http://www.voipshield.com/research-details.php?id=74
http://www.voipshield.com/research-details.php?id=75

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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