CVE-2019-10999 : Exploit Details and Defense Strategies

A buffer overflow vulnerability in the alphapd web server used by D-Link DCS series Wi-Fi cameras allows remote attackers to execute arbitrary code.

Understanding CVE-2019-10999

What is CVE-2019-10999?

The vulnerability in the D-Link DCS series of Wi-Fi cameras enables authenticated remote attackers to trigger a buffer overflow by providing a lengthy string in a specific parameter.

The Impact of CVE-2019-10999

The vulnerability allows attackers to execute arbitrary code on affected D-Link camera models, compromising their security.

Technical Details of CVE-2019-10999

Vulnerability Description

The stack-based buffer overflow in the alphapd web server of D-Link DCS cameras permits attackers to exploit the WEPEncryption parameter, leading to code execution.

Affected Systems and Versions

DCS-5009L (1.08.11 and earlier)
DCS-5010L (1.14.09 and earlier)
DCS-5020L (1.15.12 and earlier)
DCS-5025L (1.03.07 and earlier)
DCS-5030L (1.04.10 and earlier)
DCS-930L (2.16.01 and earlier)
DCS-931L (1.14.11 and earlier)
DCS-932L (2.17.01 and earlier)
DCS-933L (1.14.11 and earlier)
DCS-934L (1.05.04 and earlier)

Exploitation Mechanism

Attackers can exploit the vulnerability by providing a lengthy string in the WEPEncryption parameter while requesting wireless.htm.

Mitigation and Prevention

Immediate Steps to Take

Update D-Link DCS cameras to the latest firmware versions.
Implement strong authentication mechanisms to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply security patches provided by D-Link to address the buffer overflow vulnerability in the alphapd web server.