Vulnerability · Published Dec 30, 2021 · Assigned by tenable

CVE-2021-44466

High 7.3

In plain English

A high-severity security flaw in Bitmask Riseup VPN 0.21.6. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS NVD)7.3High

Exploit odds (30 days)0.4%top 64.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
n/a	Bitmask Riseup VPN 0.21.6	0.21.6

References

https://www.tenable.com/security/research/tra-2021-58 x_refsource_MISC