CVE-2024-11667 Zyxel Multiple Firewalls Path Traversal

Exploited in the wild High 7.5 Published Updated

Attackers can download or upload files via crafted URLs in the web management interface of Zyxel ATP and USG FLEX firewalls.

Exploited in the wild
Since 3 Dec 2024
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-11667?

CVE-2024-11667 is a high-severity path traversal vulnerability in Zyxel ATP series firmware, published on 27 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A directory traversal vulnerability in the web management interface of Zyxel ATP series firmware versions V5.00 through V5.38, USG FLEX series firmware versions V5.00 through V5.38, USG FLEX 50(W) series firmware versions V5.10 through V5.38, and USG20(W)-VPN series firmware versions V5.10 through V5.38 could allow an attacker to download or upload files via a crafted URL.

Weakness: CWE-22

Which versions are affected by CVE-2024-11667?

It affects 1 product.

Products include Zyxel Zld.

How do I fix CVE-2024-11667?

No fix has been published for CVE-2024-11667 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 24 Dec 2024.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2024-11667 being exploited?

Yes. Attackers have exploited CVE-2024-11667 in the wild since at least 3 Dec 2024, including in ransomware campaigns.

Sources

Also known as GHSA-h9fh-gm4r-6cxh.

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