CVE-2019-1799 : Exploit Details and Defense Strategies
Learn about CVE-2019-1799 involving Cisco Wireless LAN Controller Software vulnerability leading to denial of service. Find mitigation steps and affected versions.
Cisco Wireless LAN Controller Software IAPP Message Handling Denial of Service Vulnerabilities
Understanding CVE-2019-1799
This CVE involves a vulnerability in Cisco Wireless LAN Controller (WLC) Software that could lead to a denial of service (DoS) situation due to improper handling of Inter-Access Point Protocol (IAPP) messages.
What is CVE-2019-1799?
The flaw in Cisco WLC Software allows an attacker in close proximity to send malicious IAPP messages, potentially forcing the software to restart, causing a DoS scenario.
The Impact of CVE-2019-1799
The vulnerability has a CVSS base score of 7.4 (High severity) and could result in a DoS condition on affected devices.
Technical Details of CVE-2019-1799
Vulnerability Description
- Improper validation of input in IAPP messages by Cisco WLC Software
Affected Systems and Versions
- Cisco Wireless LAN Controller (WLC) Software versions earlier than 8.2.170.0, 8.5.150.0, and 8.8.100.0
Exploitation Mechanism
- Attacker sends malicious IAPP messages to vulnerable devices
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches or updates
- Monitor network traffic for any suspicious IAPP messages
Long-Term Security Practices
- Regularly update software and firmware
- Implement network segmentation and access controls
Patching and Updates
- Cisco has released patches to address this vulnerability