CVE-2019-8454 Path traversal in Check Point Endpoint Security client for Windows

High 7.0 Published Updated

A local attacker can exploit hard-linking and WPAD impersonation to inject malicious commands into a BAT file executed by the system or user.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-8454?

CVE-2019-8454 is a high-severity path traversal vulnerability in Check Point Endpoint Security client for Windows, published on 29 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A local attacker can create a hard-link between a file to which the Check Point Endpoint Security client for Windows before E80.96 writes and another BAT file, then by impersonating the WPAD server, the attacker can write BAT commands into that file that will later be run by the user or the system.

Weakness: CWE-59, CWE-65

Which versions are affected by CVE-2019-8454?

It affects 1 product.

Products include Checkpoint Endpoint Security.

How do I fix CVE-2019-8454?

No fix has been published for CVE-2019-8454 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2019-8454 being exploited?

There is no known exploitation of CVE-2019-8454 in the wild and no public exploit code.

Sources

Also known as GHSA-2jcp-ppp2-c9rv.

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