CVE-2021-44466 — HIGH (7.3)

Vulnerability 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.

CVSS Score

7.3

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Leap	Bitmask Riseup Vpn	0.21.6
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-732

References

https://www.tenable.com/security/research/tra-2021-58PatchThird Party Advisory
https://www.tenable.com/security/research/tra-2021-58PatchThird Party Advisory

FAQ

What is CVE-2021-44466?

CVE-2021-44466 is a vulnerability with a CVSS score of 7.3 (HIGH). 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, t...

How severe is CVE-2021-44466?

CVE-2021-44466 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-44466?

Check the references section above for vendor advisories and patch information. Affected products include: Leap Bitmask Riseup Vpn, Microsoft Windows.