CVE-2020-27383 Privilege escalation in n/a
An authenticated user can escalate privileges by modifying the Battle.net executable due to weak file permissions granting full control to the Authenticated Users group.
- 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-2020-27383?
CVE-2020-27383 is a high-severity vulnerability in n/a, published on 9 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Battle.net.exe in Battle.Net 1.27.1.12428 suffers from an elevation of privileges vulnerability which can be used by an "Authenticated User" to modify the existing executable file with a binary of his choice. The vulnerability exist due to weak set of permissions being granted to the "Authenticated Users Group" which grants the (F) Flag aka "Full Control"
Weakness: CWE-281
Which versions are affected by CVE-2020-27383?
It affects 1 product.
Products include Blizzard Battle.net.
How do I fix CVE-2020-27383?
No fix has been published for CVE-2020-27383 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27383 being exploited?
There is no known exploitation of CVE-2020-27383 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mqmr-qq67-c6hj.