CVE-2017-12275 : What You Need to Know
Learn about CVE-2017-12275, a vulnerability in Cisco Wireless LAN Controllers allowing unauthenticated attackers to trigger device reloads, leading to denial of service (DoS) attacks. Find mitigation steps and patch information.
A vulnerability in Cisco Wireless LAN Controllers could allow an unauthenticated attacker to cause a denial of service (DoS) by triggering unexpected device reloads.
Understanding CVE-2017-12275
What is CVE-2017-12275?
This CVE identifies a flaw in how Cisco Wireless LAN Controllers handle 802.11v Basic Service Set (BSS) Transition Management, potentially leading to DoS attacks.
The Impact of CVE-2017-12275
The vulnerability allows adjacent unauthenticated attackers to exploit the device, causing unexpected reloads and disrupting services.
Technical Details of CVE-2017-12275
Vulnerability Description
- Insufficient validation of 802.11v BSS Transition Management Response packets
- Attackers can send manipulated packets to trigger unexpected device reloads
Affected Systems and Versions
- Product: Cisco Wireless LAN Controller
- Version: Cisco Wireless LAN Controller
Exploitation Mechanism
- Attackers send malformed 802.11v BSS Transition Management Response packets to affected devices
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by Cisco
- Monitor network for unusual reloads or disruptions
Long-Term Security Practices
- Regularly update and patch network devices
- Implement network segmentation and access controls
Patching and Updates
- Refer to Cisco's security advisory for specific patch details