Cisco IP Phone SIP INVITE denial of service
| cisco-ipphone-sip-invite-dos (33098) |  Medium Risk |
Description:
Cisco IP Phone 7940 and 7960 running firmware P0S3-07-4-00 are vulnerable to a denial of service attack, caused by the improper handling of SIP INVITE messages. A remote attacker could send a specially-crafted INVITE message containing a malformed "sipURI" field of the Remote-Party-ID to cause the device to reboot.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.9 |
| Exploitability: | Proof-Of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to cisco-sr-20070320-sip for upgrade information. See References.
References:
- Cisco Support Web site: Download Software.
- cisco-sr-20070320-sip: Cisco Security Response to: Cisco IP Phone 7940/7960 SIP INVITE Denial of Service.
- Full-Disclosure Mailing List, Tue Mar 20 2007 - 03:28:30 CDT: CISCO Phone 7940 DOS vulnerability.
- Full-Disclosure Mailing List, Tue Mar 20 2007 - 09:53:33 CDT: Re: CISCO Phone 7940 DOS vulnerability.
- BID-23047: Cisco 7940/7960 Phone SIP Invite Remote Denial of Service Vulnerability
- CVE-2007-1542: Unspecified vulnerability in the Cisco IP Phone 7940 and 7960 running firmware before POS8-6-0 allows remote attackers to cause a denial of service via the Remote-Party-ID sipURI field in a SIP INVITE request. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
- SA24600: Cisco IP Phone 7940/7960 SIP INVITE Denial of Service Vulnerability
- SECTRACK ID: 1017797: Cisco 7940/7960 IP Phones Can Be Crashed With a SIP INVITE Message
- VUPEN/ADV-2007-1023: Cisco IP Phone 7940 and 7960 SIP INVITE Request Denial of Service Vulnerability
Platforms Affected:
- Cisco IP Phone 7940
- Cisco IP Phone 7960
Reported:
Mar 20, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.