What is CVE-2021-36383?

CVE-2021-36383 is a medium-severity vulnerability in Xen-Orchestra Xo-Server. CVSS score: 4.3/10. Published 2021-07-12.

How severe is CVE-2021-36383?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Xen-Orchestra Xo-Server

CVE-2021-36383

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.

EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Xen-orchestra Xo-server
Xen-orchestra Xo-web
N/a — versions n/a

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-36383?: CVE-2021-36383 is a medium-severity vulnerability in Xen-Orchestra Xo-Server. CVSS score: 4.3/10. Published 2021-07-12.
How severe is CVE-2021-36383?: Medium severity. CVSS v3 base score is 4.3 out of 10.