HIGH

CVE-2021-42561

CVSS v3

8.8

HIGH

EPSS Score

10.3%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An issue was discovered in CALDERA 2.8.1. When activated, the Human plugin passes the unsanitized name parameter to a python "os.system" function. This allows attackers to use shell metacharacters (e.g., backticks "``" or dollar parenthesis "$()" ) in order to escape the current command and execute arbitrary shell commands.

Technical details

Published
1/12/2022

Frequently asked questions

What is CVE-2021-42561?

An issue was discovered in CALDERA 2.8.1. When activated, the Human plugin passes the unsanitized name parameter to a python "os.system" function. This allows attackers to use shell metacharacters (e.g., backticks "``" or dollar parenthesis "$()" ) in order to escape the current command and execute arbitrary shell commands.

Is CVE-2021-42561 actively exploited?

Active exploitation of CVE-2021-42561 has not been confirmed. The EPSS score is 10.3%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-42561?

CVE-2021-42561 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-42561 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.