CVE-2017-12282 : Vulnerability Insights and Analysis
Learn about CVE-2017-12282, a vulnerability in Cisco Wireless LAN Controllers allowing attackers to trigger device restarts, causing denial of service. Find mitigation steps and patching details.
Cisco Wireless LAN Controllers Vulnerability
Understanding CVE-2017-12282
What is CVE-2017-12282?
A vulnerability in the Access Network Query Protocol (ANQP) processing of Cisco Wireless LAN Controllers could allow an attacker to trigger an unexpected device restart, leading to a denial of service (DoS) condition.
The Impact of CVE-2017-12282
The vulnerability could be exploited by an unauthorized attacker within close range of the network, causing a DoS condition by restarting the affected device.
Technical Details of CVE-2017-12282
Vulnerability Description
The issue arises from inadequate validation of ANQP query frames by the affected device, allowing an attacker to send a malformed frame and trigger an unexpected restart.
Affected Systems and Versions
- Cisco Wireless LAN Controllers running vulnerable Cisco WLC Software with Hotspot 2.0 support enabled
Exploitation Mechanism
- Attacker sends a malformed ANQP query frame to the affected device on an RF-adjacent network
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by Cisco to address the vulnerability
- Disable Hotspot 2.0 support if not essential
Long-Term Security Practices
- Regularly update and patch Cisco Wireless LAN Controllers
- Implement network segmentation and access controls
- Monitor network traffic for any suspicious activities
Patching and Updates
- Refer to Cisco's security advisory for specific patch details and instructions