CVE-2019-20501 Explained : Impact and Mitigation
Learn about CVE-2019-20501 affecting D-Link DWL-2600AP 4.2.0.15 Rev A devices. Find out the impact, technical details, and mitigation steps for this OS command injection vulnerability.
D-Link DWL-2600AP 4.2.0.15 Rev A devices have a vulnerability that allows authenticated users to execute operating system commands through specific parameters in the web interface.
Understanding CVE-2019-20501
This CVE involves an authenticated OS command injection vulnerability in D-Link DWL-2600AP devices.
What is CVE-2019-20501?
The vulnerability in D-Link DWL-2600AP 4.2.0.15 Rev A devices enables authenticated users to run OS commands via the Upgrade Firmware feature in the device's web interface using specific characters in certain parameters.
The Impact of CVE-2019-20501
This vulnerability can be exploited by attackers with authenticated access to the device, potentially leading to unauthorized execution of commands on the operating system.
Technical Details of CVE-2019-20501
This section provides more technical insights into the CVE.
Vulnerability Description
The flaw in D-Link DWL-2600AP devices allows authenticated users to inject OS commands through the admin.cgi?action=upgrade firmwareRestore or firmwareServerip parameter in the Upgrade Firmware feature.
Affected Systems and Versions
- Product: D-Link DWL-2600AP 4.2.0.15 Rev A
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by authenticated users through the Upgrade Firmware functionality in the device's web interface by manipulating specific parameters.
Mitigation and Prevention
Protecting systems from CVE-2019-20501 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable access to the Upgrade Firmware feature for untrusted users.
- Monitor and restrict access to the affected device.
- Apply security patches or updates provided by the vendor.
Long-Term Security Practices
- Regularly update firmware and software to mitigate known vulnerabilities.
- Implement strong authentication mechanisms to prevent unauthorized access.
- Conduct security assessments and audits periodically to identify and address potential risks.
- Educate users on secure practices and awareness of social engineering tactics.
Patching and Updates
- Stay informed about security advisories and updates from D-Link.
- Apply patches or firmware updates promptly to address the vulnerability and enhance device security.