CVE-2021-44466 Privilege escalation in Bitmask Riseup VPN 0.21.6
Local attackers can escalate privileges to Administrator by replacing the VPN executable in non-default installation directories due to improper ACLs.
- 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-2021-44466?
CVE-2021-44466 is a high-severity vulnerability in Bitmask Riseup VPN 0.21.6, published on 30 Dec 2021. 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
Bitmask Riseup VPN 0.21.6 contains a local privilege escalation flaw due to improper access controls. When the software is installed with a non-default installation directory off of the system root, the installer fails to properly set ACLs. This allows lower privileged users to replace the VPN executable with a malicious one. When a higher privileged user such as an Administrator launches that executable, it is possible for the lower privileged user to escalate to Administrator privileges.
Weakness: CWE-732
Which versions are affected by CVE-2021-44466?
It affects 1 product.
Products include Leap Bitmask Riseup Vpn.
How do I fix CVE-2021-44466?
No fix has been published for CVE-2021-44466 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-44466 being exploited?
There is no known exploitation of CVE-2021-44466 in the wild and no public exploit code.
Sources
Also known as GHSA-57mh-5gf7-8mcg.