7.3
HIGH
CVE-2021-44466
Bitmask Riseup VPN Local Privilege Escalation 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.

INFO

Published Date :

Dec. 30, 2021, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 6:31 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.3
Affected Products

The following products are affected by CVE-2021-44466 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows
1 Leap bitmask_riseup_vpn
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-44466.

URL Resource
https://www.tenable.com/security/research/tra-2021-58 Patch Third Party Advisory
https://www.tenable.com/security/research/tra-2021-58 Patch Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-44466 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-44466 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.tenable.com/security/research/tra-2021-58
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-269 CWE-732
  • Initial Analysis by [email protected]

    Jan. 11, 2022

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:H/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.tenable.com/security/research/tra-2021-58 No Types Assigned https://www.tenable.com/security/research/tra-2021-58 Patch, Third Party Advisory
    Added CWE NIST CWE-269
    Added CPE Configuration AND OR *cpe:2.3:a:leap:bitmask_riseup_vpn:0.21.6:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability