#VU59133 Permissions, Privileges, and Access Controls in Bitmask Riseup - CVE-2021-44466

Vulnerability identifier: #VU59133

Vulnerability risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44466

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Bitmask Riseup
Server applications / Remote access servers, VPN

Vendor: LEAP Encryption Access Project

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions. A local user can replace the VPN executable with a malicious one, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Bitmask Riseup: 0.21.6

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

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.