Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Osnexus | Quantastor | < 6.0.0.355 |
| Linux | Linux Kernel | - |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://csirt.divd.nl/CVE-2021-42083Third Party Advisory
- https://csirt.divd.nl/DIVD-2021-00020/
- https://www.osnexus.com/products/software-defined-storageProduct
- https://www.wbsec.nl/osnexusThird Party Advisory
- https://csirt.divd.nl/CVE-2021-42083Third Party Advisory
- https://www.divd.nl/DIVD-2021-00020
- https://www.osnexus.com/products/software-defined-storageProduct
- https://www.wbsec.nl/osnexusThird Party Advisory
FAQ
What is CVE-2021-42083?
CVE-2021-42083 is a vulnerability with a CVSS score of 8.7 (HIGH). 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 ...
How severe is CVE-2021-42083?
CVE-2021-42083 has been rated HIGH with a CVSS base score of 8.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42083?
Check the references section above for vendor advisories and patch information. Affected products include: Osnexus Quantastor, Linux Linux Kernel, Microsoft Windows.