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TITLE:
Cisco Unified IP Phone Privilege Escalation and Security Bypass

SECUNIA ADVISORY ID:
SA44814

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44814/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44814

RELEASE DATE:
2011-06-03

DISCUSS ADVISORY:
http://secunia.com/advisories/44814/#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/44814/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=44814

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:
Some security issues have been reported in Cisco Unified IP Phone
models, which can be exploited by malicious, local users to bypass
certain security restrictions and perform certain actions with
escalated privileges.

1) An error within the "su" utility can be exploited to change the
phone configuration or gain potentially sensitive information.

2) An unspecified error can be exploited to change the phone
configuration or gain potentially sensitive information.

3) An error in the device does not properly verify the signature of
the software image before loading the image and can be exploited to
upload an arbitrary software image.

The security issues are reported in the following products:
* Cisco Unified IP Phone 7975G
* Cisco Unified IP Phone 7971G-GE
* Cisco Unified IP Phone 7970G
* Cisco Unified IP Phone 7965G
* Cisco Unified IP Phone 7962G
* Cisco Unified IP Phone 7961G
* Cisco Unified IP Phone 7961G-GE
* Cisco Unified IP Phone 7945G
* Cisco Unified IP Phone 7942G
* Cisco Unified IP Phone 7941G
* Cisco Unified IP Phone 7941G-GE
* Cisco Unified IP Phone 7931G
* Cisco Unified IP Phone 7911G
* Cisco Unified IP Phone 7906

SOLUTION:
Apply patches (please see the vendor's advisory for more
information).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Matt Duggan, Qualcomm.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20110601-phone.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:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
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Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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