CVE-2021-23854 : Exploit Details and Defense Strategies

An in-depth look at the reflected cross site scripting (XSS) vulnerability in Bosch IP cameras affecting specific versions of the CPP Firmware.

Understanding CVE-2021-23854

This CVE involves an error in the handling of a page parameter in Bosch IP cameras, leading to a reflected cross site scripting (XSS) vulnerability in the web-based interface.

What is CVE-2021-23854?

CVE-2021-23854 is a security vulnerability in Bosch IP cameras due to improper handling of a page parameter, allowing for reflected cross site scripting (XSS) attacks.

The Impact of CVE-2021-23854

CVSS Base Score: 8.3 (High)
Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Impact: High impact on confidentiality, integrity, and availability.
Scope: Changed

Technical Details of CVE-2021-23854

This section dives into the vulnerability description, affected systems, and how the exploitation can occur.

Vulnerability Description

The vulnerability arises from mishandling the page parameter in Bosch IP cameras, leading to XSS via the web interface.

Affected Systems and Versions

Affected Platforms: CPP6, CPP7, CPP7.3, CPP13
Affected Versions: 7.70, 7.72, 7.62, 7.75, 7.76

Exploitation Mechanism

Exploitation of this vulnerability involves crafting malicious requests to inject and execute arbitrary scripts in the web interface.

Mitigation and Prevention

Discover the necessary steps to mitigate the risk of exploitation and prevent further security issues.

Immediate Steps to Take

Upgrade affected Bosch IP cameras to non-vulnerable versions.
Implement network security measures to filter out potentially malicious requests.

Long-Term Security Practices

Regularly update firmware and apply security patches from Bosch.
Conduct security assessments and penetration testing.

Patching and Updates

Stay informed about security advisories from Bosch and promptly apply recommended patches to secure the IP cameras.