CVE-2019-20213 : Security Advisory and Response

D-Link DIR-859 routers before version 1.07b03_beta have a vulnerability that allows the disclosure of information without authentication.

Understanding CVE-2019-20213

This CVE identifies a security flaw in D-Link DIR-859 routers that can lead to unauthenticated information disclosure.

What is CVE-2019-20213?

The vulnerability in D-Link DIR-859 routers allows unauthorized access to sensitive information by manipulating a specific parameter in the router's configuration file.

The Impact of CVE-2019-20213

Exploiting this vulnerability can result in the unauthorized disclosure of critical information stored on the affected routers, compromising user privacy and network security.

Technical Details of CVE-2019-20213

Dive deeper into the technical aspects of this CVE.

Vulnerability Description

The vulnerability arises when the value of "AUTHORIZED_GROUP" is set to "1%0a" in the vpnconfig.php file, enabling attackers to access information without proper authentication.

Affected Systems and Versions

Product: D-Link DIR-859 routers
Versions affected: Before version 1.07b03_beta

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the "AUTHORIZED_GROUP" parameter in the vpnconfig.php file, bypassing authentication mechanisms and gaining unauthorized access to sensitive data.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2019-20213.

Immediate Steps to Take

Update the D-Link DIR-859 router to version 1.07b03_beta or newer to patch the vulnerability.
Monitor network traffic for any suspicious activities that might indicate unauthorized access.

Long-Term Security Practices

Regularly update router firmware to ensure protection against known vulnerabilities.
Implement strong password policies and network segmentation to enhance overall security.

Patching and Updates

Stay informed about security advisories from D-Link and apply patches promptly to address any newly discovered vulnerabilities.