Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355
CVE-2021-42082

7.8HIGH

Key Information:

Vendor

Osnexus

Status
Quantastor
Vendor
CVE Published:
10 July 2023

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-42082?

A vulnerability in OSNexus Software Defined Storage enables local users to execute arbitrary scripts with root privileges. This flaw can be exploited by an authenticated user to gain unauthorized access and control over system resources, posing significant security risks. Proper access controls and regular audits are essential to mitigate the impact of this vulnerability.

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-2021-42082 - 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:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wietse Boonstra
.