CVE-2022-41761 Explained : Impact and Mitigation

A security vulnerability has been identified in NOKIA NFM-T R19.9 that could allow a remote authenticated attacker to perform absolute path traversal, potentially leading to unauthorized access to sensitive information.

Understanding CVE-2022-41761

This section will provide detailed insights into the nature of the CVE-2022-41761 vulnerability.

What is CVE-2022-41761?

The CVE-2022-41761 vulnerability is present in NOKIA NFM-T R19.9, specifically in the VM Manager WebUI. It enables a remote authenticated attacker to read arbitrary files by exploiting an Absolute Path Traversal flaw in the logfile parameter located at /cgi-bin/R19.9/viewlog.pl.

The Impact of CVE-2022-41761

The impact of this vulnerability is significant as it allows unauthorized access to sensitive files. An attacker could exploit this flaw to gain valuable information, leading to further security breaches and potential data leakage.

Technical Details of CVE-2022-41761

In this section, we delve into the technical aspects of CVE-2022-41761 to understand the vulnerability in depth.

Vulnerability Description

The Absolute Path Traversal vulnerability in NOKIA NFM-T R19.9 allows attackers to navigate through the file system and access files that are meant to be restricted, leading to a critical security risk.

Affected Systems and Versions

All instances of NOKIA NFM-T R19.9 are affected by this vulnerability. It is crucial for organizations using this version to take immediate action to prevent exploitation.

Exploitation Mechanism

By manipulating the logfile parameter in the VM Manager WebUI at /cgi-bin/R19.9/viewlog.pl, a remote authenticated attacker can exploit the Absolute Path Traversal flaw to read sensitive files.

Mitigation and Prevention

Protecting systems from CVE-2022-41761 requires immediate action to mitigate the risks posed by the vulnerability.

Immediate Steps to Take

Organizations should consider implementing access controls, restricting file system permissions, and monitoring file access to prevent unauthorized information disclosure.

Long-Term Security Practices

Regular security assessments, penetration testing, and employee training on secure coding practices can help prevent similar vulnerabilities in the future.

Patching and Updates

It is crucial to apply security patches and updates provided by the vendor promptly. Regularly monitoring for security advisories and staying informed about the latest security threats is essential to maintain a secure environment.