NextcloudGHSA-CQ8W-V4FH-4RJQAdvanced permissions not respected when copying entire group folders
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
30.6%
Description
Impact
A user can access files inside a subfolder of a groupfolder accessible to them, even if advanced permissions would block access to the subfolder.
Patches
It is recommended that the Nextcloud Server is upgraded to 25.0.8, 26.0.3 or 27.0.1
It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3 or 27.0.1
Workarounds
- No workaround available
References
For more information
If you have any questions or comments about this advisory:
- Create a post in nextcloud/security-advisories
- Customers: Open a support ticket at portal.nextcloud.com
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.001 Low
EPSS
Percentile
30.6%