CVE-2021-33551 Explained : Impact and Mitigation
Find out about CVE-2021-33551, a critical command injection vulnerability impacting Geutebrück camera devices, allowing remote code execution. Learn about the impact, affected systems, and mitigation steps.
Multiple camera devices by UDP Technology, Geutebrück, and other vendors are vulnerable to command injection, allowing remote execution of arbitrary code.
Understanding CVE-2021-33551
This CVE involves a command injection vulnerability in UDP Technology/Geutebrück camera devices that can lead to remote code execution.
What is CVE-2021-33551?
CVE-2021-33551 is a security vulnerability found in Geutebrück E2 Series and Encoder G-Code products, allowing attackers to execute arbitrary code remotely.
The Impact of CVE-2021-33551
The vulnerability poses a high-risk threat as it can be exploited to compromise the security of camera surveillance systems, leading to unauthorized access and control.
Technical Details of CVE-2021-33551
The vulnerability is classified under CWE-78 and has a CVSS base score of 7.2 (High severity). The attack can be performed over a network with high privileges required but low complexity.
Vulnerability Description
The vulnerability allows malicious actors to inject commands into the 'environment.lang' parameter, leading to the execution of unauthorized code on the affected camera devices.
Affected Systems and Versions
Geutebrück E2 Series and Encoder G-Code products are affected by this vulnerability, with specific versions listed as vulnerable, allowing attackers to exploit these versions.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious commands into the specified parameter, taking advantage of inadequate input validation.
Mitigation and Prevention
It is crucial to take immediate steps to secure the vulnerable camera devices and implement long-term security practices to prevent future exploits.
Immediate Steps to Take
Affected users should apply security patches provided by the vendors promptly and restrict network access to vulnerable devices.
Long-Term Security Practices
Implement strong network segmentation, regular security updates, and conduct security assessments to identify and mitigate potential vulnerabilities.
Patching and Updates
Regularly check for security advisories from the vendors and apply patches as soon as they are released to maintain the security of camera devices.