CVE-2024-37882 Nextcloud Server can reshare read&share only folder with more permissions
A user with read and share permissions can improperly reshare folders with elevated permissions, bypassing intended access controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-37882?
CVE-2024-37882 is a high-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 14 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshare the item with more permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4 and that the Nextcloud Enterprise Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4.
Which versions are affected by CVE-2024-37882?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2024-37882?
No fix has been published for CVE-2024-37882 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2024-37882 being exploited?
There is no known exploitation of CVE-2024-37882 in the wild and no public exploit code.
Other vulnerabilities in Nextcloud Nextcloud Server
- CVE-2021-32802 Preview generation used third-party library not suited for user-generated content in Nextcloud server
- CVE-2023-26482 Scope of workflow operations is not validated in nextcloud server
- CVE-2018-3775 Auth bypass in Nextcloud Server
- CVE-2023-35172 Nextcloud Server password reset endpoint is not brute force protected
- CVE-2023-32320 Nextcloud Server's brute force protection allows someone to send more requests than intended
Sources
Also known as GHSA-jjm3-j9xh-5xmq.