CVE-2019-20499 : Exploit Details and Defense Strategies

An authenticated OS command injection vulnerability exists in D-Link DWL-2600AP 4.2.0.15 Rev A devices through the Restore Configuration functionality in the Web interface.

Understanding CVE-2019-20499

This CVE involves an authenticated OS command injection vulnerability in specific D-Link devices.

What is CVE-2019-20499?

This CVE refers to a security flaw in D-Link DWL-2600AP 4.2.0.15 Rev A devices that allows attackers to execute commands through the Web interface.

The Impact of CVE-2019-20499

The vulnerability enables attackers to inject commands into the system using shell metacharacters, potentially leading to unauthorized access and control.

Technical Details of CVE-2019-20499

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to exploit the Restore Configuration functionality by injecting commands via specific parameters.

Affected Systems and Versions

Product: D-Link DWL-2600AP 4.2.0.15 Rev A
Version: Not applicable

Exploitation Mechanism

Attackers can utilize shell metacharacters in the admin.cgi?action=config_restore configRestore or configServerip parameter to inject malicious commands.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the affected functionality if not essential for operations.
Implement strong authentication mechanisms to prevent unauthorized access.
Regularly monitor system logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Keep systems and software updated with the latest patches and security fixes.

Patching and Updates

Apply patches and updates provided by D-Link to address the vulnerability and enhance system security.