Authenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335
CVE-2021-42083

8.7HIGH

Key Information:

Vendor

Osnexus

Status
Quantastor
Vendor
CVE Published:
10 July 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-42083?

An authenticated attacker could exploit a stored Cross-Site Scripting vulnerability within OSNexus Software Defined Storage. By creating alerts, an attacker may execute scripts that compromise the integrity of the application, potentially affecting users who interact with the alerts. This highlights the importance of securing input channels and validating user-generated content.

Affected Version(s)

QuantaStor Windows 0 < 6.0.0.355

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-42083 - Proof of Concept

References

https://www.wbsec.nl/osnexus
third-party-advisorytechnical-descriptionexploit
https://csirt.divd.nl/DIVD-2021-00020/
third-party-advisory
https://www.osnexus.com/products/software-defined-storage
product

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wietse Boonstra
.