CVE-2020-14080 : What You Need to Know

TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow vulnerability that allows for arbitrary code execution.

Understanding CVE-2020-14080

This CVE involves a critical vulnerability in TRENDnet TEW-827DRU devices that can be exploited by an unauthenticated user.

What is CVE-2020-14080?

The vulnerability in the ssi binary of TRENDnet TEW-827DRU devices allows an attacker to execute arbitrary code by sending a specially crafted POST request.

The Impact of CVE-2020-14080

Exploitation of this vulnerability can lead to unauthorized remote code execution on the affected devices, posing a significant security risk.

Technical Details of CVE-2020-14080

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The stack-based buffer overflow occurs in the ssi binary of TRENDnet TEW-827DRU devices, triggered by sending a POST request to apply_sec.cgi with a long ping_ipaddr key.

Affected Systems and Versions

TRENDnet TEW-827DRU devices through version 2.06B04 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated user through the action ping_test in apply_sec.cgi with a sufficiently long ping_ipaddr key.

Mitigation and Prevention

Protecting systems from CVE-2020-14080 requires immediate action and long-term security measures.

Immediate Steps to Take

Disable remote access to the affected devices if possible.
Monitor network traffic for any suspicious activity.
Apply vendor-supplied patches or updates as soon as they are available.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing to identify and address security weaknesses.
Educate users on safe computing practices and the importance of cybersecurity awareness.

Patching and Updates

Check the vendor's official website for security advisories and patches related to CVE-2020-14080.
Apply all recommended security updates promptly to mitigate the risk of exploitation.