Cisco Wireless LAN Controller (WLC) ACL weak security
| cisco-wlc-acl-weak-security (33611) |  Medium Risk |
Description:
Cisco Wireless LAN Controller (WLC) could provide weaker than expected security caused by an error when the Access Control List (ACL) is saved. The ACL configuration is saved with an invalid checksum. When the WLC is restarted the ACL fails to load because of an invalid checksum resulting in weaker than expected security.
*CVSS:
| Base Score: | 3.7 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 3.1 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Configuration
Remedy:
Refer to cisco-sa-20070412-wlc for upgrade information. See References.
References:
- cisco-sa-20070412-wlc: Cisco Security Advisory: Multiple Vulnerabilities in the Cisco Wireless LAN Controller and Cisco Lightweight Access Points.
- BID-23461: Cisco Wireless Lan Controller Multiple Remote Vulnerabilities
- CVE-2007-2041: Cisco Wireless LAN Controller (WLC) before 4.0.206.0 saves the WLAN ACL configuration with an invalid checksum, which prevents WLAN ACLs from being loaded at boot time, and might allow remote attackers to bypass intended access restrictions, aka Bug ID CSCse58195.
- OSVDB ID: 34138: Cisco Wireless LAN Controller (WLC) WLAN ACL Configuration Loading Weakness
- SECTRACK ID: 1017908: Cisco Wireless LAN Controller Lets Remote Users Modify the Configuration and Deny Service
- VUPEN/ADV-2007-1368: Cisco Wireless LAN Controller Security Bypass and Denial of Service Vulnerabilities
Platforms Affected:
- Cisco 2100 Wireless LAN Controller
- Cisco 4400 Wireless LAN Controller
Reported:
Apr 12, 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.