CVE-2019-11061 HG100 has a broken access control vulnerability in its Web API Server

Critical 10.0 Published 29 Aug 2019 Updated 16 Sep 2024

Unauthenticated attackers on the local network can control connected IoT devices via the Web API, leading to full system compromise.

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-2019-11061?

CVE-2019-11061 is a critical missing authorization vulnerability in ASUS HG100 firmware, published on 29 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A broken access control vulnerability in HG100 firmware versions up to 4.00.06 allows an attacker in the same local area network to control IoT devices that connect with itself via http://[target]/smarthome/devicecontrol without any authentication. CVSS 3.0 base score 10 (Confidentiality, Integrity and Availability impacts). CVSS vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Weakness: CWE-306

Which versions are affected by CVE-2019-11061?

It affects 1 product.

Products include Asus Hg100 Firmware.

How do I fix CVE-2019-11061?

No fix has been published for CVE-2019-11061 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-2019-11061 being exploited?

There is no known exploitation of CVE-2019-11061 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-qwvg-w866-x6c3.