CVE-2021-36383 — MEDIUM (4.3)

Q: How severe is CVE-2021-36383?

CVE-2021-36383 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-36383?

Check the references section above for vendor advisories and patch information. Affected products include: Xen-Orchestra Xo-Server, Xen-Orchestra Xo-Web.

Vulnerability 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.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Xen-Orchestra	Xo-Server	<= 5.84.0
Xen-Orchestra	Xo-Web	<= 5.80.0

References

https://github.com/vatesfr/xen-orchestra/issues/5712ExploitIssue TrackingThird Party Advisory
https://github.com/vatesfr/xen-orchestra/issues/5712ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2021-36383?

CVE-2021-36383 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 permis...

How severe is CVE-2021-36383?

CVE-2021-36383 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-36383?

Check the references section above for vendor advisories and patch information. Affected products include: Xen-Orchestra Xo-Server, Xen-Orchestra Xo-Web.