Cisco Unified IP Phone telnet server buffer overflow
| cisco-unifiedipphone-telnet-bo (40493) |  High Risk |
Description:
Cisco Unified IP Phones running SIP firmware are vulnerable to a buffer overflow, caused by improper bounds checking when the telnet server is enabled and the password parameter is configured. By sending a specially-crafted command to the telnet server, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the phone with elevated privileges.
Platforms Affected:
- Cisco, Unified IP Phone 7940
- Cisco, Unified IP Phone 7940G
- Cisco, Unified IP Phone 7960
- Cisco, Unified IP Phone 7960G
Remedy:
Refer to cisco-sa-20080213-phone for patch, upgrade or suggested workaround information. See References.
Consequences:
Gain Privileges
References:
- cisco-sa-20080213-phone, Cisco Security Advisory: Cisco Unified IP Phone Overflow and Denial of Service Vulnerabilities at http://www.cisco.com/warp/public/707/cisco-sa-20080213-phone.shtml.
- BID-27774: Cisco Unified IP Phone SCCP and SIP Protocol Multiple Remote Vulnerabilities
- CVE-2008-0529: Buffer overflow in the telnet server in Cisco Unified IP Phone 7906G, 7911G, 7941G, 7961G, 7970G, and 7971G running SCCP firmware might allow remote authenticated users to execute arbitrary code via a crafted command.
- SA28935: Cisco Unified IP Phone Multiple Vulnerabilities
- SECTRACK ID: 1019410: Cisco Unified IP Phone Buffer Overflow in Telnet Server Lets Remote Users Execute Arbitrary Code
- VUPEN/ADV-2008-0543: Cisco Unified IP Phones Overflow and Denial of Service Vulnerabilities
Reported:
Feb 13, 2008
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