CVE-2019-10039 : Exploit Details and Defense Strategies

A vulnerability in the D-Link DIR-816 A2 1.11 router allows an attacker to modify web or system accounts without authentication.

Understanding CVE-2019-10039

This CVE involves a security flaw in the D-Link DIR-816 A2 1.11 router that enables unauthorized access to system accounts.

What is CVE-2019-10039?

The vulnerability in the D-Link DIR-816 A2 1.11 router allows attackers to manipulate web or system accounts without proper authentication by exploiting a specific API URL.

The Impact of CVE-2019-10039

The vulnerability permits unauthorized users to make changes to web or system accounts without the need for authentication, posing a significant security risk to affected devices.

Technical Details of CVE-2019-10039

This section provides detailed technical information about the vulnerability.

Vulnerability Description

When authorizing a goform request, the D-Link DIR-816 A2 1.11 router only verifies the random token, allowing attackers to obtain the token and modify accounts without authentication.

Affected Systems and Versions

Product: D-Link DIR-816 A2 1.11 router
Version: n/a

Exploitation Mechanism

By acquiring the random token from dir_login.asp, attackers can exploit the API URL /goform/setSysAdm to edit web or system accounts without authentication.

Mitigation and Prevention

Protecting systems from CVE-2019-10039 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable remote access if not required
Monitor network traffic for suspicious activities
Apply vendor-supplied patches or updates

Long-Term Security Practices

Regularly update firmware and software
Implement strong authentication mechanisms
Conduct security audits and penetration testing

Patching and Updates

Check for patches or updates from D-Link to address the vulnerability