CVE-2018-11714 Auth bypass in n/a

Critical 9.8 Published 4 Jun 2018 Updated 16 Sep 2024

Attackers can bypass authentication on TP-Link routers by spoofing the Referer header, gaining unauthorized access to administrative functions.

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-2018-11714?

CVE-2018-11714 is a critical authentication bypass vulnerability in n/a, published on 4 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13 00000013 0.9.1 4.16 v0001.0 Build 170622 Rel.64334n devices. This issue is caused by improper session handling on the /cgi/ folder or a /cgi file. If an attacker sends a header of "Referer: http://192.168.0.1/mainFrame.htm" then no authentication is required for any action.

Weakness: CWE-384

Which versions are affected by CVE-2018-11714?

It affects 2 products.

Products include Tp-Link Tl-Wr840n Firmware, Tp-Link Tl-Wr841n Firmware.

How do I fix CVE-2018-11714?

No fix has been published for CVE-2018-11714 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-11714 being exploited?

There is no known exploitation of CVE-2018-11714 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as CVE-2024-57050, GHSA-cc78-5w3j-x6q8.