CVE-2021-42561

moderate-risk
Published 2022-01-12

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.

Do I need to act?

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10.3% chance of exploitation in next 30 days
EPSS score — higher than 90% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Mitre

References (4)

Exploit https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%...
Release Notes https://github.com/mitre/caldera/releases
Exploit https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%...
Release Notes https://github.com/mitre/caldera/releases
46
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 11/34 · Low
Exposure 5/34 · Minimal