CVE-2023-35085 : What You Need to Know

This article provides detailed information about CVE-2023-35085, an integer overflow vulnerability in UniFi Access Points and Switches that could lead to Remote Code Execution (RCE).

Understanding CVE-2023-35085

CVE-2023-35085 is an integer overflow vulnerability present in all UniFi Access Points and Switches (excluding the Switch Flex Mini) with SNMP Monitoring and default settings enabled. The vulnerability could potentially allow a Remote Code Execution (RCE) attack.

What is CVE-2023-35085?

The vulnerability in UniFi devices, if exploited, could result in an attacker executing arbitrary code remotely. This could lead to unauthorized access, data theft, or further compromise of the affected system.

The Impact of CVE-2023-35085

The impact of this vulnerability is rated as CRITICAL with a CVSS base score of 9.0. Successful exploitation could result in complete compromise of the affected system, making it crucial for organizations to apply necessary patches and mitigations.

Technical Details of CVE-2023-35085

Vulnerability Description: The vulnerability is caused by an integer overflow issue in UniFi Access Points and Switches, allowing attackers to trigger remote code execution.

Affected Systems and Versions: All UniFi Access Points (Version 6.5.50 and earlier) and UniFi Switches (Version 6.5.32 and earlier) are affected by this vulnerability.

Exploitation Mechanism: Attackers can exploit this vulnerability by leveraging the SNMP Monitoring feature and default settings enabled in the affected UniFi devices.

Mitigation and Prevention

To address CVE-2023-35085, organizations are recommended to take the following steps:

Immediate Steps to Take

Update UniFi Access Points to Version 6.5.62 or later.
Update the UniFi Switches to Version 6.5.59 or later.

Long-Term Security Practices

Implementing network segmentation, least privilege access, and regular security monitoring can help enhance the overall security posture of the organization.

Patching and Updates

Regularly applying security patches and firmware updates provided by Ubiquiti Inc. is crucial for protecting UniFi devices against known vulnerabilities.