Cisco IOS SSH multiple denial of service
| cisco-ios-ssh-multiple-dos (42563) |  Low Risk |
Description:
Cisco IOS is vulnerable to a denial of service, caused by multiple unspecified errors in the server side implementation of SSH. A remote attacker could exploit this vulnerability using unknown attack vectors to utilize all memory resources or reload the device.
*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-20080521-ssh for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sa-20080521-ssh: Cisco IOS Secure Shell Denial of Service Vulnerabilities.
- BID-29314: Cisco IOS SSH Multiple Denial of Service Vulnerabilities
- CVE-2008-1159: Multiple unspecified vulnerabilities in the SSH server in Cisco IOS 12.4 allow remote attackers to cause a denial of service (device restart) via unknown vectors, aka Bug ID (1) CSCsk42419, (2) CSCsk60020, and (3) CSCsh51293.
- SA30322: Cisco IOS SSH Server Denial of Service
- SECTRACK ID: 1020073: Cisco IOS SSH Service Bug Lets Remote Users Deny Service
- VUPEN/ADV-2008-1605: Cisco IOS Secure Shell Remote Denial of Service Vulnerabilities
Platforms Affected:
- Cisco IOS 12.4
- Cisco IOS 12.4(13D)JA
- Cisco IOS 12.4(13D)JA1
- Cisco IOS 12.4MR
- Cisco IOS 12.4SW
- Cisco IOS 12.4T
- Cisco IOS 12.4XE
- Cisco IOS 12.4XF
- Cisco IOS 12.4XJ
- Cisco IOS 12.4XK
- Cisco IOS 12.4XV
- Cisco IOS 12.4XW
Reported:
May 21, 2008
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For corrections or additions please email xforce@iss.net
* 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.