VulnerabilityModified
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.
MEDIUM 4.3EPSS 0.71%
Does this matter?
Lower severity and a low EPSS score (0.71%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.71% probability · 52th percentile
- CISA KEV
- Not listed
- Affected
- xen-orchestra/xo-server · xen-orchestra/xo-web
- Source
- cve@mitre.org
References
- https://github.com/vatesfr/xen-orchestra/issues/5712Exploit, Issue Tracking, Third Party Advisory
- https://github.com/vatesfr/xen-orchestra/issues/5712Exploit, Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.