CVE-2020-28055 : What You Need to Know
Learn about CVE-2020-28055, a vulnerability in TCL Android Smart TVs allowing unauthorized access to critical directories, potentially leading to system compromise. Find mitigation steps and preventive measures here.
A vulnerability in the TCL Android Smart TV series V8-R851T02-LF1 V295 and below and V8-T658T01-LF1 V373 and below by TCL Technology Group Corporation allows unauthorized access to critical directories, potentially enabling malicious activities.
Understanding CVE-2020-28055
This CVE identifies a security flaw in TCL Android Smart TVs that could be exploited by local unprivileged attackers.
What is CVE-2020-28055?
The vulnerability permits unauthorized access to specific directories within the TV file system, enabling attackers to read and write to sensitive areas, potentially leading to unauthorized system upgrades.
The Impact of CVE-2020-28055
The vulnerability could allow malicious actors to manipulate the TV system, posing risks of unauthorized data access and potential system compromise.
Technical Details of CVE-2020-28055
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw in TCL Android Smart TVs allows local unprivileged attackers to read and write to critical directories, including /data/vendor/tcl and /var/TerminalManager, potentially leading to unauthorized system upgrades.
Affected Systems and Versions
- TCL Android Smart TV series V8-R851T02-LF1 V295 and below
- TCL Android Smart TV series V8-T658T01-LF1 V373 and below
Exploitation Mechanism
Attackers, such as malicious apps or local unprivileged users, can exploit the vulnerability by writing to specific directories within the TV file system.
Mitigation and Prevention
Protecting systems from CVE-2020-28055 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable unnecessary services on the TV to reduce the attack surface
- Regularly monitor for unauthorized system changes
- Implement network segmentation to isolate the TV from critical systems
Long-Term Security Practices
- Keep the TV firmware up to date with the latest security patches
- Conduct regular security assessments and penetration testing
Patching and Updates
- Apply security updates provided by TCL to address the vulnerability and enhance system security