CVE-2022-1359 : Exploit Details and Defense Strategies

Cambium Networks disclosed a vulnerability in the cnMaestro network management application that could allow an attacker to perform arbitrary file-write operations due to improper restrictions on file paths. Here's what you need to know about CVE-2022-1359.

Understanding CVE-2022-1359

This section delves into the details of the vulnerability affecting Cambium Networks cnMaestro.

What is CVE-2022-1359?

The vulnerability in the cnMaestro application allows an attacker to write to any file on the server by exploiting improper directory restrictions.

The Impact of CVE-2022-1359

The impact of this vulnerability is rated as Medium severity, with a CVSS base score of 5.7. It can lead to arbitrary file modifications on the affected server.

Technical Details of CVE-2022-1359

In this section, we discuss the technical aspects of the CVE-2022-1359 vulnerability.

Vulnerability Description

The flaw in the cnMaestro application enables attackers to manipulate file paths and write arbitrary data to the server.

Affected Systems and Versions

The vulnerability affects versions less than 3.0.3-r32, 2.4.2-r29, and 3.0.0-r34 of cnMaestro.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting path traversal characters in filenames, leading to unauthorized file writes.

Mitigation and Prevention

Protect your systems from CVE-2022-1359 with the following measures.

Immediate Steps to Take

It is recommended to apply the security patches released by Cambium Networks:

3.0.3-r32
2.4.2-r29
3.0.0-r34 Ensure to download the patches from Cambium Networks support platform.

Long-Term Security Practices

Implement secure file handling practices and regularly update your cnMaestro software to prevent such vulnerabilities.

Patching and Updates

For users of cnMaestro Cloud, Cambium Networks has already addressed these vulnerabilities through patches, requiring no further action.