Cisco Unified Communications Manager and Cisco Unified CallManager TFTP filename buffer overflow
| cucm-tftp-filename-bo (37247) |  High Risk |
Description:
Cisco Unified Communications Manager and Cisco Unified CallManager are vulnerable to a buffer overflow, caused by improper bounds checking by the Centralized TFTP File Locator Service. By sending a specially-crafted filename to UDP port 69 or TCP port 6970, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
Platforms Affected:
- Cisco, Unified CallManager 5.0
- Cisco, Unified Communications Manager 5.1
- Cisco, Unified Communications Manager 5.1(1)
- Cisco, Unified Communications Manager 5.1(2)
Remedy:
Refer to cisco-sa-20071017-cucm for patch, upgrade or suggested workaround information. See References.
Consequences:
Gain Access
References:
- cisco-sa-20071017-cucm, Cisco Unified Communications Manager Denial of Service Vulnerabilities at http://www.cisco.com/warp/public/707/cisco-sa-20071017-cucm.shtml.
- BID-26105: Cisco Unified Communications Manager Remote Denial of Service and Buffer Overflow Vulnerabilities
- CVE-2007-5538: Buffer overflow in the Centralized TFTP File Locator Service in Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(3), and Unified CallManager 5.0, allows remote attackers to execute arbitrary code or cause a denial of service via unspecified vectors involving the processing of filenames, aka CSCsh47712.
- SA27296: Cisco Unified Communications Manager Two Vulnerabilities
- SECTRACK ID: 1018828: Cisco Unified Communications Manager SIP INVITE Processing Lets Remote Users Deny Service and TFTP Buffer Overflow Lets Remote Users Execute Arbitrary Code
- VUPEN/ADV-2007-3532: Cisco Unified Communications Manager Code Execution and DoS Issues
Reported:
Oct 17, 2007
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