CVE-2020-35576 Explained : Impact and Mitigation
Learn about CVE-2020-35576, a Command Injection flaw in TP-Link TL-WR841N V13 (JP) routers allowing unauthorized code execution. Find mitigation steps and firmware update details.
A Command Injection vulnerability in the traceroute feature on TP-Link TL-WR841N V13 (JP) allows authenticated users to execute arbitrary code as root via shell metacharacters.
Understanding CVE-2020-35576
This CVE identifies a specific security issue in the TP-Link TL-WR841N V13 (JP) router that could potentially lead to unauthorized code execution.
What is CVE-2020-35576?
The CVE-2020-35576 vulnerability is a Command Injection flaw that enables authenticated users to run arbitrary code with root privileges through the traceroute feature on the TP-Link TL-WR841N V13 (JP) router.
The Impact of CVE-2020-35576
This vulnerability could allow attackers to execute malicious commands on the affected router, potentially leading to unauthorized access, data theft, or further network compromise.
Technical Details of CVE-2020-35576
This section provides more in-depth technical insights into the CVE-2020-35576 vulnerability.
Vulnerability Description
The vulnerability arises from improper input validation in the traceroute feature, enabling authenticated users to inject and execute arbitrary commands as root.
Affected Systems and Versions
- Vendor: TP-Link
- Product: TL-WR841N V13 (JP)
- Versions: Firmware versions prior to 201216
Exploitation Mechanism
The vulnerability can be exploited by authenticated users leveraging shell metacharacters within the traceroute feature to execute unauthorized commands with elevated privileges.
Mitigation and Prevention
To address CVE-2020-35576 and enhance overall security, follow these mitigation strategies:
Immediate Steps to Take
- Update the router firmware to version 201216 or later.
- Restrict access to the traceroute feature to authorized users only.
Long-Term Security Practices
- Regularly monitor for firmware updates and apply them promptly.
- Implement strong authentication mechanisms and access controls to prevent unauthorized access.
Patching and Updates
- Stay informed about security advisories from TP-Link and apply patches as soon as they are released.