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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OSNEXUS | QuantaStor | < 6.0.0.355 | 6.0.0.355 |
References
- https://www.wbsec.nl/osnexus third-party-advisory technical-description exploit
- https://csirt.divd.nl/DIVD-2021-00020/ third-party-advisory
- https://www.osnexus.com/products/software-defined-storage product
- https://csirt.divd.nl/CVE-2021-42083 third-party-advisory exploit technical-description