CVE-2019-18339 : Exploit Details and Defense Strategies

An authentication bypass vulnerability has been discovered in the SiNVR/SiVMS Video Server (versions below V5.0.0), allowing remote attackers to retrieve user database information.

Understanding CVE-2019-18339

This CVE identifies a critical authentication bypass vulnerability in Siemens' SiNVR/SiVMS Video Server.

What is CVE-2019-18339?

The vulnerability allows remote attackers to access user database information, including passwords, in obfuscated cleartext.

The Impact of CVE-2019-18339

The vulnerability poses a critical threat, enabling unauthorized access to sensitive user data stored in the SiNVR/SiVMS Video Server.

Technical Details of CVE-2019-18339

The following technical details provide insight into the vulnerability.

Vulnerability Description

An authentication bypass vulnerability affecting the HTTP service of SiNVR/SiVMS Video Server versions below V5.0.0.

Affected Systems and Versions

Vendor: Siemens
Product: SiNVR/SiVMS Video Server
Affected Versions: All versions < V5.0.0

Exploitation Mechanism

The vulnerability allows remote attackers with network access to the Video Server to retrieve user database information, including passwords.

Mitigation and Prevention

Protect your systems from CVE-2019-18339 with the following measures.

Immediate Steps to Take

Update SiNVR/SiVMS Video Server to version V5.0.0 or higher.
Implement network segmentation to restrict access to the Video Server.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Apply security patches provided by Siemens promptly to address the authentication bypass vulnerability.