CVE-2017-11456 Explained : Impact and Mitigation

Geneko GWR routers have a vulnerability that allows unauthorized access to configuration files through directory traversal sequences.

Understanding CVE-2017-11456

The vulnerability in Geneko GWR routers enables attackers to access configuration files without authentication.

What is CVE-2017-11456?

The GWR routers made by Geneko have a feature that allows the use of directory traversal sequences starting with a /../ substring, leading to unauthorized access to configuration files.

The Impact of CVE-2017-11456

This vulnerability can be exploited by attackers to gain unauthorized access to sensitive configuration files without the need for authentication, potentially compromising the security and confidentiality of the system.

Technical Details of CVE-2017-11456

The technical aspects of the vulnerability in Geneko GWR routers.

Vulnerability Description

The routers allow directory traversal sequences starting with a /../ substring, leading to unauthenticated read access to configuration files.

Affected Systems and Versions

Product: Geneko GWR routers
Vendor: Geneko
Versions: All versions are affected

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating directory traversal sequences to access configuration files without authentication.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2017-11456.

Immediate Steps to Take

Disable remote access to the router if not required
Implement strong authentication mechanisms
Regularly monitor and review access logs for suspicious activities

Long-Term Security Practices

Keep router firmware up to date
Conduct regular security assessments and penetration testing
Educate users on secure configuration practices

Patching and Updates

Check for firmware updates from Geneko and apply patches promptly to address the vulnerability