CVE-2020-14078 : Security Advisory and Response
Learn about CVE-2020-14078, a vulnerability in TRENDnet TEW-827DRU devices allowing code execution. Find out affected versions, exploitation details, and mitigation steps.
TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow vulnerability that allows an authenticated user to execute arbitrary code.
Understanding CVE-2020-14078
What is CVE-2020-14078?
CVE-2020-14078 is a vulnerability found in TRENDnet TEW-827DRU devices that enables an authenticated user to trigger a stack-based buffer overflow.
The Impact of CVE-2020-14078
The vulnerability allows attackers to execute arbitrary code by exploiting the overflow through specific actions.
Technical Details of CVE-2020-14078
Vulnerability Description
The stack-based buffer overflow occurs in the ssi binary of TRENDnet TEW-827DRU devices through version 2.06B04.
Affected Systems and Versions
- Product: TRENDnet TEW-827DRU
- Versions affected: Through 2.06B04
Exploitation Mechanism
- Attackers can exploit the vulnerability by POSTing to apply.cgi via the action wifi_captive_portal_login with a long REMOTE_ADDR key.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Restrict network access to vulnerable devices.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update firmware and software to address security vulnerabilities.
- Implement strong authentication mechanisms and access controls.
- Conduct security assessments and penetration testing periodically.
Patching and Updates
- Check for security advisories from TRENDnet and apply patches as soon as they are available.