CVE-2019-5061 Explained : Impact and Mitigation
Learn about CVE-2019-5061, a high-impact vulnerability in hostapd 2.6 allowing denial-of-service attacks. Find out affected systems, exploitation details, and mitigation steps.
A vulnerability in hostapd version 2.6 can be exploited for denial-of-service attacks, allowing an attacker to manipulate AP behavior and cause various disruptions.
Understanding CVE-2019-5061
What is CVE-2019-5061?
An attacker can exploit a vulnerability in hostapd 2.6 to trigger denial-of-service scenarios by manipulating AP behavior before the authentication process completes.
The Impact of CVE-2019-5061
The vulnerability poses a high availability impact, enabling attackers to disrupt wireless infrastructure through CAM table attacks or traffic flapping.
Technical Details of CVE-2019-5061
Vulnerability Description
The flaw in hostapd 2.6 allows attackers to force APs to send IAPP location updates prematurely, leading to denial-of-service scenarios.
Affected Systems and Versions
- Product: W1.f1
- Vendor: n/a
- Versions: hostapd version 2.6 Ubiquiti AP-AC-Pro firmware 4.0.10.9653
Exploitation Mechanism
Attackers can exploit the vulnerability by sending forged Authentication and Association Request packets.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor patches promptly
- Monitor network for suspicious activities
- Implement network segmentation
Long-Term Security Practices
- Regularly update firmware and software
- Conduct security training for staff
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the vulnerability.