CVE-2019-19298 : Security Advisory and Response

A security flaw has been detected in the SiNVR/SiVMS Video Server, potentially allowing unauthorized remote attackers to trigger a Denial-of-Service state.

Understanding CVE-2019-19298

This CVE identifies a vulnerability in the SiNVR/SiVMS Video Server versions prior to V5.0.0 and versions equal to or greater than V5.0.0 but less than V5.0.2.

What is CVE-2019-19298?

The SiVMS/SiNVR Video Server's streaming service on port 5410/tcp has a vulnerability related to input validation, enabling attackers to exploit it through malformed HTTP requests.

The Impact of CVE-2019-19298

The vulnerability could lead to a Denial-of-Service state, potentially disrupting the availability of the affected service.

Technical Details of CVE-2019-19298

Vulnerability Description

The vulnerability is categorized as CWE-20: Improper Input Validation, with a CVSSv3.1 base score of 7.5 (High).

Affected Systems and Versions

Vendor: Siemens
Product: SiNVR/SiVMS Video Server
Versions Affected:
All versions < V5.0.0
All versions >= V5.0.0 < V5.0.2

Exploitation Mechanism

Attackers can exploit the vulnerability by sending malformed HTTP requests to the SiVMS/SiNVR Video Server's streaming service on port 5410/tcp.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly.
Monitor network traffic for any suspicious activity targeting port 5410/tcp.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing.

Patching and Updates

Ensure that the SiNVR/SiVMS Video Server is updated to version V5.0.2 or higher to mitigate the vulnerability.