Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mitre | Caldera | <= 2.8.1 |
Related Weaknesses (CWE)
References
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%ExploitThird Party Advisory
- https://github.com/mitre/caldera/releasesRelease NotesThird Party Advisory
- https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%ExploitThird Party Advisory
- https://github.com/mitre/caldera/releasesRelease NotesThird Party Advisory
FAQ
What is CVE-2021-42561?
CVE-2021-42561 is a vulnerability with a CVSS score of 8.8 (HIGH). 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....
How severe is CVE-2021-42561?
CVE-2021-42561 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42561?
Check the references section above for vendor advisories and patch information. Affected products include: Mitre Caldera.