Cisco Unified Communications Manager and Cisco Unified CallManager SIP INVITE denial of service
| cucm-sip-invite-dos (37246) |  Medium Risk |
Description:
Cisco Unified Communications Manager and Cisco Unified CallManager are vulnerable to a denial of service, caused by an error in the Session Initiation Protocol (SIP) stack. By flooding UDP port 5060 with SIP INVITE messages, a remote attacker could exhaust all resources and cause a kernel panic.
*CVSS:
| Base Score: | 7.8 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 5.8 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to cisco-sa-20071017-cucm for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sa-20071017-cucm: Cisco Unified Communications Manager Denial of Service Vulnerabilities.
- BID-26105: Cisco Unified Communications Manager Remote Denial of Service and Buffer Overflow Vulnerabilities
- CVE-2007-5537: Cisco Unified Communications Manager (CUCM, formerly CallManager) 5.1 before 5.1(2), and Unified CallManager 5.0, allow remote attackers to cause a denial of service (kernel panic) via a flood of SIP INVITE messages to UDP port 5060, which triggers resource exhaustion, aka CSCsi75822.
- 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
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)
Reported:
Oct 17, 2007
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* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.