canonical ubuntu-linux CVE-2021-3621 vulnerability in Canonical and Other Products
Published on December 23, 2021

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A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

NVD

Weakness Type

What is a Command Injection Vulnerability?

The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

CVE-2021-3621 has been classified to as a Command Injection vulnerability or weakness.


Products Associated with CVE-2021-3621

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-3621 are published in these products:

Canonical Ubuntu Linux
 
Sssd
 
Red Hat Virtualization
 
Red Hat Virtualization Host
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Enterprise Linux Eus
 
Red Hat Enterprise Linux Server Aus
 
Red Hat Enterprise Linux Server Tus
 
Fedora Project Fedora
 
Fedora Project Sssd
 

Exploit Probability

EPSS
0.45%
Percentile
63.33%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.