CVE-2022-4956 Caphyon Advanced Installer WinSxS DLL uncontrolled search path

High 7.8 Published Updated

Local attackers can exploit an uncontrolled search path in the WinSxS DLL handler to execute arbitrary code or escalate privileges.

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-2022-4956?

CVE-2022-4956 is a high-severity path traversal vulnerability in Caphyon Advanced Installer, published on 30 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability classified as critical has been found in Caphyon Advanced Installer 19.7. This affects an unknown part of the component WinSxS DLL Handler. The manipulation leads to uncontrolled search path. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. Upgrading to version 19.7.1 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-240903.

Weakness: CWE-427

Which versions are affected by CVE-2022-4956?

It affects 1 product.

Products include Caphyon Advanced Installer.

How do I fix CVE-2022-4956?

No fix has been published for CVE-2022-4956 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-2022-4956 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4956 exists.

Sources

Also known as GHSA-3w3w-2hqv-65f8.

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