8.8
HIGH
CVE-2021-3020
"ClusterLabs Hawk Privilege Escalation vulnerability"
Description

An issue was discovered in ClusterLabs Hawk (aka HA Web Konsole) through 2.3.0-15. It ships the binary hawk_invoke (built from tools/hawk_invoke.c), intended to be used as a setuid program. This allows the hacluster user to invoke certain commands as root (with an attempt to limit this to safe combinations). This user is able to execute an interactive "shell" that isn't limited to the commands specified in hawk_invoke, allowing escalation to root.

INFO

Published Date :

Aug. 26, 2022, 12:15 a.m.

Last Modified :

Aug. 8, 2023, 2:22 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-3020 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 Clusterlabs hawk
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-2021-3020.

URL Resource
https://bugzilla.suse.com/show_bug.cgi?id=1180571 Permissions Required
https://github.com/ClusterLabs/crmsh/commit/c538024b8ebd138dc373b005189471d9b77e9c82 Patch Third Party Advisory
https://github.com/ClusterLabs/hawk/releases Release Notes 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-2021-3020 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3020 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Sep. 02, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1180571 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1180571 Permissions Required
    Changed Reference Type https://github.com/ClusterLabs/crmsh/commit/c538024b8ebd138dc373b005189471d9b77e9c82 No Types Assigned https://github.com/ClusterLabs/crmsh/commit/c538024b8ebd138dc373b005189471d9b77e9c82 Patch, Third Party Advisory
    Changed Reference Type https://github.com/ClusterLabs/hawk/releases No Types Assigned https://github.com/ClusterLabs/hawk/releases Release Notes, Third Party Advisory
    Added CWE NIST CWE-77
    Added CPE Configuration OR *cpe:2.3:a:clusterlabs:hawk:*:*:*:*:*:*:*:* versions up to (including) 2.3.0-15
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3020 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-3020 weaknesses.

Exploit Prediction

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

0.16 }} 0.01%

score

0.51584

percentile

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