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TITLE:
Cisco Unified Videoconferencing Products Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA42248

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42248/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42248

RELEASE DATE:
2010-11-18

DISCUSS ADVISORY:
http://secunia.com/advisories/42248/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42248/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42248

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Multiple weaknesses and vulnerabilities have been reported in Cisco
Unified Videoconferencing, which can be exploited by malicious, local
users to disclose sensitive information and gain escalated privileges,
by malicious users to compromise a vulnerable system, and by malicious
people to hijack another user's session, disclose sensitive
information, and potentially compromise a vulnerable system.

1) Multiple hard-coded accounts exist ("root", "cs", and "develop")
that cannot be disabled, which can be exploited to potentially gain
access to the device via e.g. brute force attacks.

2) Input passed via the "username" parameter to
goform/websXMLAdminRequestCgi.cgi is not properly sanitised before
being used as a command line argument, which can be exploited to
inject arbitrary shell commands with the privileges of the root
user.

Successful exploitation requires administrative credentials.

3) A weakness due to using a reversible hashing scheme for passwords
in the configuration file
/opt/rv/Versions/CurrentVersion/Mcu/Config/Mcu.val can be exploited
to gain access to the password of the administrator and operator
accounts.

4) A weakness is caused due to the shadow password file being world
readable.

5) A vulnerability is caused due to the creation of session IDs based
on a time counter, which can be exploited to hijack another user's
session by e.g. using a brute force attack to iterate over all
possible time values from last system boot time.

6) A weakness due to credentials being stored in a cookie in Base64
encoded or clear text can be exploited to gain access to the device
by e.g. sniffing network traffic or a Man-in-the-Middle (MitM)
attack.

NOTE: Additionally, some configuration issues exists in the FTP, Web,
and OpenSSH servers.

The weaknesses and vulnerabilities are reported in the following
products:
* Cisco Unified Videoconferencing 5110
* Cisco Unified Videoconferencing 5115
* Cisco Unified Videoconferencing 5230
* Cisco Unified Videoconferencing 3545
* Cisco Unified Videoconferencing 3527 Primary Rate Interface (PRI)
Gateway
* Cisco Unified Videoconferencing 3522 Basic Rate Interfaces (BRI)
Gateway
* Cisco Unified Videoconferencing 3515 Multipoint Control Unit (MCU)

SOLUTION:
Currently, no fix is available (please see the vendor's advisory for
a potential workaround).

PROVIDED AND/OR DISCOVERED BY:
Florent Daigniere, Matta Consulting.

ORIGINAL ADVISORY:
Matta (MATTA-2010-001):
http://www.trustmatta.com/advisories/MATTA-2010-001.txt

Cisco:
http://www.cisco.com/warp/public/707/cisco-sr-20101117-cuvc.shtml

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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