CVE-2021-27944 : Exploit Details and Defense Strategies
Learn about CVE-2021-27944, a critical vulnerability in Vizio Smart TVs allowing unauthenticated threat actors to access privileged functionality, leading to OS command execution.
This CVE-2021-27944 article provides detailed information about a vulnerability found in Vizio Smart TVs. The vulnerability allows unauthenticated threat actors to access high privileged APIs, leading to OS command execution through a specific attack methodology of file upload.
Understanding CVE-2021-27944
This section will cover what CVE-2021-27944 is and its impact.
What is CVE-2021-27944?
CVE-2021-27944 refers to a security flaw in the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs that enables unauthorized access to privileged functionality, resulting in the execution of operating system commands.
The Impact of CVE-2021-27944
This vulnerability allows unauthenticated threat actors to exploit high privileged APIs, potentially leading to severe consequences such as unauthorized access and execution of malicious commands.
Technical Details of CVE-2021-27944
In this section, we will delve into the technical aspects of the vulnerability.
Vulnerability Description
Several high privileged APIs on the Vizio Smart TVs fail to enforce access controls, enabling threat actors to access privileged functions and execute OS commands via a file upload attack.
Affected Systems and Versions
The Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs are affected by this vulnerability, potentially putting users of these models at risk.
Exploitation Mechanism
The specific attack methodology involves bypassing access controls to upload files, gaining unauthorized access to high privileged APIs, thereby executing malicious commands.
Mitigation and Prevention
This section will outline steps to mitigate the risks associated with CVE-2021-27944.
Immediate Steps to Take
Users are advised to update their Vizio Smart TVs to the latest firmware version as soon as possible to patch the vulnerability and prevent unauthorized access.
Long-Term Security Practices
Adopting good security practices such as configuring access controls, using strong authentication mechanisms, and regularly updating software can enhance the overall security posture.
Patching and Updates
Stay informed about security updates released by Vizio and promptly apply patches to ensure protection against known vulnerabilities.