CVE-2021-36383

Public Exploit

Description

Xen Orchestra (with xo-web through 5.80.0 and xo-server through 5.84.0) mishandles authorization, as demonstrated by modified WebSocket resourceSet.getAll data is which the attacker changes the permission field from none to admin. The attacker gains access to data sets such as VMs, Backups, Audit, Users, and Groups.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.15%

Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/vatesfr/xen-orchestra/issues/5712	third party advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2021-36383?: CVE-2021-36383 has been scored as a medium severity vulnerability.
How to fix CVE-2021-36383?: To fix CVE-2021-36383, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-36383 being actively exploited in the wild?: It is possible that CVE-2021-36383 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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