Cisco IOS NAT SCCP fragmentation denial of service
| ios-sccp-fragmentationdos (45535) |  Medium Risk |
Description:
Multiple Cisco devices running Cisco IOS are vulnerable to a denial of service, caused by an error when NAT Skinny Call Control Protocol (SCCP) Fragmentation Support feature is enabled. By sending a specially-crafted SCCP messages to a vulnerable device, a remote attacker could cause the device to reload.
*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-20080924-sccp for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sa-20080924-sccp: Cisco Security Advisory: Cisco IOS NAT Skinny Call Control Protocol Vulnerability.
- BID-31359: Cisco IOS NAT Skinny Call Control Protocol Multiple Remote Denial of Service Vulnerabilities
- CVE-2008-3811: Cisco IOS 12.2 and 12.4, when NAT Skinny Call Control Protocol (SCCP) Fragmentation Support is enabled, allows remote attackers to cause a denial of service (device reload) via segmented SCCP messages, aka Cisco Bug ID CSCsi17020, a different vulnerability than CVE-2008-3810.
- SA31990: Cisco IOS Multiple Vulnerabilities
- VUPEN/ADV-2008-2670: Cisco IOS Denial of Service and Security Bypass Vulnerabilities
Platforms Affected:
- Cisco IOS 12.4MD
- Cisco IOS 12.4MR
- Cisco IOS 12.4SW
- Cisco IOS 12.4T
- Cisco IOS 12.4XC
- Cisco IOS 12.4XE
- Cisco IOS 12.4xf
- Cisco IOS 12.4XG
- Cisco IOS 12.4XJ
- Cisco IOS 12.4XK
- Cisco IOS 12.4XL
- Cisco IOS 12.4XM
- Cisco IOS 12.4XN
- Cisco IOS 12.4XP
- Cisco IOS 12.4XT
- Cisco IOS 12.4XV
- Cisco IOS 12.4XW
Reported:
Sep 24, 2008
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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.