CVE-2022-35572 : Vulnerability Insights and Analysis

A vulnerability has been identified in the Linksys E5350 WiFi Router with firmware version 1.0.00.037 and lower, potentially affecting other devices due to code reuse. The vulnerability allows unauthorized extraction of sensitive information by bypassing session ID requirements.

Understanding CVE-2022-35572

This section provides insights into the nature of the vulnerability and its potential impact.

What is CVE-2022-35572?

The vulnerability in the Linksys E5350 WiFi Router allows an attacker to view sensitive data including WPA passwords, SSIDs, MAC Addresses, serial numbers, WPS Pins, and hardware/firmware versions by accessing the /SysInfo.htm URI without a session ID required.

The Impact of CVE-2022-35572

The vulnerability poses a significant risk as remote management does not need to be interacted with for exploitation over the internet, potentially leading to unauthorized access and data extraction.

Technical Details of CVE-2022-35572

In this section, we delve into specific technical aspects of the CVE to better understand its implications.

Vulnerability Description

The /SysInfo.htm URI does not enforce a session ID requirement, allowing malicious actors to extract sensitive information directly from the web page

Affected Systems and Versions

Linksys E5350 WiFi Router with firmware version 1.0.00.037 and lower is confirmed to be affected. However, other devices may also be vulnerable due to code reuse.

Exploitation Mechanism

By leveraging the lack of session ID requirements on the /SysInfo.htm URI, attackers with access to the web interface can retrieve and expose critical data.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risk posed by CVE-2022-35572 and prevent potential exploitation.

Immediate Steps to Take

Disable remote management on the affected devices if it is not essential.
Ensure that the device is not directly connected to the internet or limit access through appropriate network configurations.

Long-Term Security Practices

Regularly update the router firmware to mitigate known vulnerabilities and ensure overall security.
Implement strong password policies and restrict access to the web interface to authorized personnel only.

Patching and Updates

Monitor official sources for patches and updates released by Linksys to address the vulnerability effectively.