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Can reshare read&share only folder with more permissions

Moderate
nickvergessen published GHSA-jjm3-j9xh-5xmq Jun 14, 2024

Package

Server (Nextcloud)

Affected versions

>= 26.0.0
>= 27.0.0
>= 28.0.0

Patched versions

26.0.13
27.1.8
28.0.4
Server (Nextcloud Enterprise)
>= 23.0.0
>= 24.0.0
>= 25.0.0
>= 26.0.0
>= 27.0.0
>= 28.0.0
23.0.12.17
24.0.12.13
25.0.13.8
26.0.13
27.1.8
28.0.4

Description

Impact

A recipient of a share with read&share permissions could reshare the item with more permissions.

Patches

It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4
It is recommended that the Nextcloud Enterprise Server is upgraded to 23.0.12.17 or 24.0.12.13 or 25.0.13.8 or 26.0.13 or 27.1.8 or 28.0.4

Workarounds

  • No workaround available

References

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
4.6
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

CVE ID

CVE-2024-37882

Weaknesses

Credits