CVE-2019-6957 : Vulnerability Insights and Analysis

A security vulnerability affecting various Bosch Video Management System (BVMS) versions and related components has been identified, potentially allowing unauthorized code execution.

Understanding CVE-2019-6957

This CVE involves a buffer overflow in Bosch Video Systems, PSIM, and Access Control Systems.

What is CVE-2019-6957?

The vulnerability impacts BVMS versions 9.0 and older, DIVAR IP models, Video Recording Manager, Video Streaming Gateway, Configuration Manager, Building Integration System, Access Professional Edition, Access Easy Controller, Bosch Video Client, and Video SDK. It could enable unauthorized code execution through the network interface.

The Impact of CVE-2019-6957

The vulnerability has a CVSS base score of 9.8, indicating a critical severity level with high impacts on confidentiality, integrity, and availability. It requires no privileges for exploitation and has a low attack complexity.

Technical Details of CVE-2019-6957

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

Vulnerability Description

The security flaw allows for unauthorized code execution through the network interface of affected Bosch systems.

Affected Systems and Versions

All versions of BVMS 9.0 and older
DIVAR IP models 2000, 3000, 5000, and 7000
Video Recording Manager, Video Streaming Gateway, Configuration Manager, Building Integration System, Access Professional Edition, Access Easy Controller, Bosch Video Client, and Video SDK

Exploitation Mechanism

The vulnerability can be exploited through the network interface, potentially leading to unauthorized code execution.

Mitigation and Prevention

Protecting systems from CVE-2019-6957 requires immediate actions and long-term security practices.

Immediate Steps to Take

If a software update is not feasible, reduce the system's network exposure
Implement firewalls for internet-accessible installations
Utilize network isolation by VLAN, IP filtering, and other technologies to decrease system exposure
Activate and configure firewalls on hosts according to BVMS and BIS manuals

Long-Term Security Practices

Regularly update and patch affected systems
Conduct security assessments and audits to identify vulnerabilities
Train staff on security best practices

Patching and Updates

Refer to the published security advisory for detailed instructions on mitigating the vulnerability.