CVE-2021-22685 : What You Need to Know

A path traversal vulnerability in Cassia Networks Access Controller prior to version 2.0.1 may allow an attacker to view any file using a relative path. The vulnerability was reported by Amir Preminger and Sharon Brizinov of Claroty to CISA.

Understanding CVE-2021-22685

This CVE refers to a path traversal vulnerability in Cassia Networks Access Controller that could be exploited by an attacker to access sensitive files.

What is CVE-2021-22685?

The CVE-2021-22685 vulnerability allows an attacker to use a route with a relative path to view files on the Cassia Networks Access Controller prior to version 2.0.1.

The Impact of CVE-2021-22685

With a CVSS base score of 6.2, this medium-severity vulnerability could lead to unauthorized access to sensitive information.

Technical Details of CVE-2021-22685

The vulnerability is categorized as CWE-22, which involves improper limitation of a pathname to a restricted directory, also known as path traversal.

Vulnerability Description

The vulnerability enables attackers to navigate to directories outside the intended paths, potentially accessing confidential data.

Affected Systems and Versions

Cassia Networks Access Controller versions prior to 2.0.1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by using a crafted relative path to access files on the system.

Mitigation and Prevention

To address CVE-2021-22685, Cassia Networks has released a patch that mitigates the vulnerability. Users are advised to apply the patch promptly.

Immediate Steps to Take

Apply the patch provided by Cassia Networks to mitigate the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Regularly update your systems and implement proper access controls to reduce the risk of similar vulnerabilities.

Patching and Updates

Stay informed about security advisories from Cassia Networks and promptly apply patches to secure your systems.