CVE-2021-23860 : What You Need to Know

A reflected Cross Site Scripting (XSS) vulnerability in Bosch VRM / BVMS could allow attackers to exploit a page handler error leading to XSS in the web interface. This affects BVMS, DIVAR IP, and VRM installations.

Understanding CVE-2021-23860

This CVE discloses a vulnerability in Bosch video surveillance products that could be exploited by attackers to execute XSS attacks.

What is CVE-2021-23860?

An error in a page handler of the VRM may lead to a reflected cross site scripting (XSS) in the web-based interface. Attackers must be able to modify the HTTP header to exploit this vulnerability.

The Impact of CVE-2021-23860

With a CVSS base score of 5.0 (Medium), the vulnerability poses a risk of XSS attacks in affected Bosch products, compromising data integrity.

Technical Details of CVE-2021-23860

The vulnerability is associated with the VRM component in Bosch products, enabling attackers to inject malicious scripts.

Vulnerability Description

The flaw allows for reflected cross site scripting (XSS) attacks through the VRM's web interface, impacting BVMS, DIVAR IP, and VRM installations.

Affected Systems and Versions

Bosch BVMS versions <= 9.0.0, < 11.0.0, < 10.0.2, < 10.1.1
DIVAR IP 7000 R2: all versions affected
DIVAR IP all-in-one 5000: all versions affected
DIVAR IP all-in-one 7000: all versions affected
Bosch VRM versions <= 3.81, <= 4.00.0070, <= 3.83.0021, <= 3.82.0057

Exploitation Mechanism

Attackers with the ability to modify HTTP headers can exploit the VRM vulnerability to execute XSS attacks.

Mitigation and Prevention

Organizations should take immediate actions to secure their systems and follow long-term security practices to mitigate risks associated with CVE-2021-23860.

Immediate Steps to Take

Implement security patches provided by Bosch.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and audits.
Educate users on safe browsing habits and phishing awareness.

Patching and Updates

Stay informed about security advisories and promptly apply patches to ensure system security.