CVE-2021-42923 Code injection in n/a
An attacker can execute arbitrary code by overwriting a specific DLL in the temporary directory, affecting ShowMyPC users on Windows.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-42923?
CVE-2021-42923 is a high-severity code injection vulnerability in n/a, published on 17 Jul 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
ShowMyPC 3606 on Windows suffers from a DLL hijack vulnerability. If an attacker overwrites the file %temp%\ShowMyPC\-ShowMyPC3606\wodVPN.dll, it will run any malicious code contained in that file. The code will run with normal user privileges unless the user specifically runs ShowMyPC as administrator.
Weakness: CWE-427
Which versions are affected by CVE-2021-42923?
It affects 1 product.
Products include Showmypc Showmypc.
How do I fix CVE-2021-42923?
No fix has been published for CVE-2021-42923 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-42923 being exploited?
There is no known exploitation of CVE-2021-42923 in the wild and no public exploit code.
Sources
Also known as GHSA-fwc2-mj67-gqhq.