CVE-2023-43138 : Security Advisory and Response
Learn about CVE-2023-43138, a command injection vulnerability in TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n allowing attackers to execute arbitrary commands. Find out the impact, affected systems, and mitigation steps.
This CVE record involves a command injection vulnerability found in TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, allowing attackers to execute arbitrary commands.
Understanding CVE-2023-43138
In this section, we will delve into the details of CVE-2023-43138.
What is CVE-2023-43138?
CVE-2023-43138 is a command injection vulnerability discovered in TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n. The flaw enables threat actors to inject malicious commands into the system.
The Impact of CVE-2023-43138
The presence of this vulnerability could lead to unauthorized command execution, potentially resulting in a complete compromise of the affected system.
Technical Details of CVE-2023-43138
Let's explore the technical aspects of CVE-2023-43138.
Vulnerability Description
The vulnerability arises when an attacker, post-authentication, adds NAPT rules with an injection point in the rule name, facilitating the execution of arbitrary commands.
Affected Systems and Versions
The affected product is TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n. All versions of this product are susceptible to this vulnerability.
Exploitation Mechanism
Exploiting this vulnerability involves adding NAPT rules with specially crafted injection points in the rule name, allowing attackers to inject and execute malicious commands.
Mitigation and Prevention
Protecting against CVE-2023-43138 requires proactive security measures.
Immediate Steps to Take
Immediately apply security patches or workarounds provided by the vendor to mitigate this vulnerability. Implement strong access controls and monitor for any unusual or malicious activities.
Long-Term Security Practices
Adopt a strong security posture by regularly updating and patching systems, conducting security assessments, and educating users on cybersecurity best practices.
Patching and Updates
Stay informed about security updates released by TPLINK and ensure timely patching of affected systems to address the command injection vulnerability.