CVE-2024-6594 WatchGuard Firebox Single Sign-On Client Denial-of-Service

High 8.7 Published Updated

An attacker can crash the WatchGuard Single Sign-On Client on Windows by sending malformed commands, causing a denial of service.

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-2024-6594?

CVE-2024-6594 is a high-severity denial of service vulnerability in WatchGuard SSO Client, published on 25 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Handling of Exceptional Conditions vulnerability in the WatchGuard Single Sign-On Client on Windows causes the client to crash while handling malformed commands. An attacker with network access to the client could create a denial of service condition for the Single Sign-On service by repeatedly issuing malformed commands.

Weakness: CWE-755

Which versions are affected by CVE-2024-6594?

It affects 1 product.

Products include Watchguard Single Sign-on Client.

How do I fix CVE-2024-6594?

No fix has been published for CVE-2024-6594 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-6594 being exploited?

There is no known exploitation of CVE-2024-6594 in the wild and no public exploit code.

Sources

Also known as GHSA-4h99-x2cv-q42q.

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