CVE-2023-20112 : Vulnerability Insights and Analysis

This CVE-2023-20112 impact Cisco Access Point Software with a vulnerability that enables a denial of service attack by an unauthenticated adjacent attacker.

Understanding CVE-2023-20112

This vulnerability in Cisco access point (AP) software allows an adjacent attacker to trigger a denial of service (DoS) situation on the device by exploiting insufficient validation of specific parameters within 802.11 frames.

What is CVE-2023-20112?

CVE-2023-20112 is a vulnerability in Cisco Aironet Access Point Software that permits an attacker to cause a DoS condition by sending a wireless 802.11 association request frame with manipulated parameters to the affected device.

The Impact of CVE-2023-20112

Successful exploitation of this vulnerability can lead to an unexpected reload of the affected device, resulting in a DoS scenario. The availability of the device is significantly impacted (CVSS base score of 7.4 - High severity).

Technical Details of CVE-2023-20112

This section outlines the specific technical aspects of the CVE-2023-20112 vulnerability.

Vulnerability Description

The vulnerability arises from insufficient validation of certain parameters within 802.11 frames, allowing an adjacent attacker to craft malicious wireless requests that trigger a DoS condition on the affected device.

Affected Systems and Versions

Vendor: Cisco
Product: Cisco Aironet Access Point Software
Versions: Affected (specific version not mentioned)

Exploitation Mechanism

The attacker can exploit this vulnerability by sending a wireless 802.11 association request frame with manipulated parameters to the vulnerable device, causing it to unexpectedly reload and experience a DoS scenario.

Mitigation and Prevention

To safeguard against CVE-2023-20112, certain immediate steps can be taken, along with implementing long-term security practices and ensuring timely patching and updates.

Immediate Steps to Take

Implement access controls and network segmentation to limit exposure.
Monitor network traffic for any abnormal or suspicious activity.
Apply vendor-recommended security configurations and best practices.

Long-Term Security Practices

Regularly update and patch devices with the latest security fixes.
Conduct security training and awareness programs for network users.
Employ intrusion detection and prevention systems to identify and thwart potential attacks.

Patching and Updates

Keep abreast of security advisories from the vendor and promptly apply any patches or updates released to address vulnerabilities like CVE-2023-20112. Regularly check for security bulletins and advisories to stay informed about potential threats and necessary mitigation measures.