CVE-2021-4406
Authenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and others
- State
- Published
- Severity
- 9.1 Critical
- Published
- Jul 10, 2023
- Updated
- Sep 24, 2025
- Reserved
- Jul 5, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | DIVD |
Weaknesses
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products
| Product | Versions |
|---|---|
QuantaStorOSNEXUS |
|
References
- https://csirt.divd.nl/DIVD-2021-00020/third-party-advisory
- https://www.osnexus.com/products/software-defined-storageproduct
- https://csirt.divd.nl/CVE-2021-4406third-party-advisoryexploittechnical-description
- https://www.divd.nl/DIVD-2021-00020third-party-advisory
- https://csirt.divd.nl/cves/CVE-2021-4406/exploit
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