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CVE-2021-42083

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CVE-2021-42083

Published: Jul 10, 2023

Modified: Sep 22, 2025

PUBLISHED

CVSS v3.1

8.7

HIGH

Description

An authenticated attacker is able to create alerts that trigger a stored XSS attack. POC * go to the alert manager * open the ITSM tab * add a webhook with the URL/service token value ' -h && id | tee /tmp/ttttttddddssss #' (whitespaces are tab characters) * click add * click apply * create a test alert * The test alert will run the command “id | tee /tmp/ttttttddddssss” as root. * after the test alert inspect /tmp/ttttttddddssss it'll contain the ids of the root user.

VendorProductVersions

OSNEXUS

QuantaStor

affected
0 - < 6.0.0.355

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

References

https://www.wbsec.nl/osnexus
third-party-advisory
technical-description
exploit
https://csirt.divd.nl/CVE-2021-42083
third-party-advisory
exploit
technical-description

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