GSD-2022-30190 From the original tweet: Interesting maldoc was submitted from Belarus.
Attackers can execute arbitrary code via malicious Office documents using the ms-msdt protocol, requiring user interaction to open the file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is GSD-2022-30190?
GSD-2022-30190 is a code injection vulnerability, published on 31 May 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
From the original tweet: Interesting maldoc was submitted from Belarus. It uses Word's external link to load the HTML and then uses the "ms-msdt" scheme to execute PowerShell code.
From Microsoft: A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. This issue has been nicknamed "Follina "
Which versions are affected by GSD-2022-30190?
How do I fix GSD-2022-30190?
No fix has been published for GSD-2022-30190 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 GSD-2022-30190 being exploited?
There is no known exploitation of GSD-2022-30190 in the wild and no public exploit code.