Tl-Er5120G Firmware Security Vulnerabilities - 2023

CVE-2023-43135

There is an unauthorized access vulnerability in TP-LINK ER5120G 4.0 2.0.0 Build 210817 Rel.80868n, which allows attackers to obtain sensitive information of the device without authentication, obtain user tokens, and ultimately log in to the device backend management.

CVE-2023-43137

TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n has a command injection vulnerability, when an attacker adds ACL rules after authentication, and the rule name parameter has injection points.

CVE-2023-43138

TPLINK TL-ER5120G 4.0 2.0.0 Build 210817 Rel.80868n has a command injection vulnerability, when an attacker adds NAPT rules after authentication, and the rule name has an injection point.