CVE-2021-33549 : Exploit Details and Defense Strategies

A stack-based buffer overflow vulnerability in the action parameter of multiple camera devices by UDP Technology and Geutebrück could allow remote attackers to execute arbitrary code.

Understanding CVE-2021-33549

This CVE involves a critical vulnerability found in certain camera device models.

What is CVE-2021-33549?

The CVE-2021-33549 vulnerability pertains to a stack-based buffer overflow flaw in the action parameter of camera devices, potentially enabling malicious actors to remotely execute arbitrary code.

The Impact of CVE-2021-33549

The impact of this vulnerability is rated as HIGH severity with a CVSS base score of 7.2. It poses significant risks to confidentiality, integrity, and availability.

Technical Details of CVE-2021-33549

This section delves into the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability arises due to a stack-based buffer overflow issue in the action parameter of affected camera devices, making them susceptible to remote code execution.

Affected Systems and Versions

Products like E2 Series and Encoder G-Code by Geutebrück are affected by this vulnerability across specific versions.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by sending crafted requests to the action parameter of vulnerable camera devices, leading to the execution of arbitrary code.

Mitigation and Prevention

Here, we discuss the steps to mitigate and prevent exploitation of CVE-2021-33549.

Immediate Steps to Take

Users are advised to apply security patches provided by the vendor and implement network security measures to restrict unauthorized access.

Long-Term Security Practices

Regularly updating firmware, conducting security audits, and monitoring network traffic are recommended for maintaining long-term security.

Patching and Updates

Stay informed about security updates and promptly install patches released by Geutebrück for the affected camera device models.