CVE-2023-43135 Missing authorization in n/a

Critical 9.8 Published 20 Sep 2023 Updated 25 Sep 2024

Attackers can access sensitive information and obtain user tokens to log in to the device backend without authentication.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-43135?

CVE-2023-43135 is a critical missing authorization vulnerability in n/a, published on 20 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-862

Which versions are affected by CVE-2023-43135?

It affects 1 product.

Products include Tp-Link Tl-Er5120g Firmware.

How do I fix CVE-2023-43135?

No fix has been published for CVE-2023-43135 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-43135 being exploited?

There is no known exploitation of CVE-2023-43135 in the wild and no public exploit code.

Sources

Also known as GHSA-hcgj-5w78-pg79.