CVE-2021-25310 : What You Need to Know

A detailed overview of CVE-2021-25310, a vulnerability affecting Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices that allows remote authenticated attackers to execute system commands with root privileges.

Understanding CVE-2021-25310

This section will cover the nature of the CVE-2021-25310 vulnerability and its impacts.

What is CVE-2021-25310?

The vulnerability in Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices enables remote authenticated attackers to run system commands with root privileges using shell metacharacters in the ui_language POST parameter to the apply.cgi form endpoint.

The Impact of CVE-2021-25310

The exploitation of this vulnerability can lead to unauthorized system command execution with elevated privileges, posing a significant security risk to affected devices.

Technical Details of CVE-2021-25310

Explore the technical specifics of CVE-2021-25310 to understand its scope and implications.

Vulnerability Description

The flaw originates in the do_upgrade_post function in mini_httpd, allowing authenticated attackers to bypass security controls and perform malicious activities.

Affected Systems and Versions

Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices are specifically impacted by this vulnerability, particularly those that are no longer supported by the maintainer.

Exploitation Mechanism

Attackers exploit the vulnerability by injecting shell metacharacters in the ui_language POST parameter, enabling them to execute arbitrary system commands with root privileges.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent potential exploitation of CVE-2021-25310.

Immediate Steps to Take

Users should ensure they are not using the affected devices for critical operations and consider isolating them from the network until a patch or mitigation strategy is implemented.

Long-Term Security Practices

Regularly update and patch all devices to maintain a secure environment and consider replacing unsupported hardware to reduce exposure to known vulnerabilities.

Patching and Updates

Stay informed about security advisories from the vendor and apply patches promptly to address CVE-2021-25310 and other potential threats.