CVE-2022-31485 : What You Need to Know

This article provides insights into CVE-2022-31485, a vulnerability that allows an unauthenticated attacker to manipulate the 'notes' section of the home page on certain web interfaces. The affected products are based on HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 with firmware versions below 1.29.

Understanding CVE-2022-31485

CVE-2022-31485 is a security vulnerability that impacts various products from LenelS2 and HID Mercury, allowing unauthorized modification of the home page notes section through specially crafted packets.

What is CVE-2022-31485?

An unauthenticated attacker can exploit this vulnerability to update the 'notes' section of the web interface's home page. Products affected include HID Mercury Intelligent Controllers LP1501, LP1502, LP2500, LP4502, and EP4502 with firmware versions less than 1.29.

The Impact of CVE-2022-31485

This vulnerability poses a medium risk with a CVSS base score of 5.3. It could lead to unauthorized alteration of controller settings and potentially compromise system integrity.

Technical Details of CVE-2022-31485

The vulnerability has a CVSS V3.1 base severity of 'MEDIUM' with low attack complexity and network vector. While it requires no user interaction, it could affect system integrity and confidentiality.

Vulnerability Description

The flaw enables attackers to manipulate the 'notes' section of the home page on impacted web interfaces, potentially leading to unauthorized changes in controller settings.

Affected Systems and Versions

Products such as LNL-X2210, LNL-X2220, LNL-X3300, S2-LP-1501, and LP1501 among others by LenelS2 and HID Mercury are vulnerable if running firmware versions earlier than 1.29.

Exploitation Mechanism

By sending specially crafted packets, unauthenticated individuals can exploit this vulnerability to modify the 'notes' section on the home page of affected web interfaces.

Mitigation and Prevention

Understanding the severity of CVE-2022-31485, it's crucial to adopt immediate and long-term security measures to mitigate the risk.

Immediate Steps to Take

Disable the controller's Web Server to prevent unauthorized access. Configure the controller to disallow remote login, enhancing security until a patch is applied.

Long-Term Security Practices

Regularly update firmware to the latest versions, implement network segmentation, and conduct security assessments to identify and address vulnerabilities.

Patching and Updates

Ensure all affected products are updated with the latest firmware version as a preventive measure against CVE-2022-31485.