CVE-2023-28834
What it is
Nextcloud Server is an open source personal cloud server. Nextcloud Server 24.0.0 until 24.0.6 and 25.0.0 until 25.0.4, as well as Nextcloud Enterprise Server 23.0.0 until 23.0.11, 24.0.0 until 24.0.6, and 25.0.0 until 25.0.4, have an information disclosure vulnerability. A user was able to get the full data directory path of the Nextcloud server from an API endpoint. By itself this information is not problematic as it can also be guessed for most common setups, but it could speed up other unknown attacks in the future if the information is known. Nextcloud Server 24.0.6 and 25.0.4 and Nextcloud Enterprise Server 23.0.11, 24.0.6, and 25.0.4 contain patches for this issue. There are no known workarounds.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.8% in the next 30 days (EPSS).
- Severity: 3.5 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-212
- Record status
- Modified
Affected
- Nextcloud Server < 23.0.14
- Nextcloud Server < 24.0.10
- Nextcloud Server < 25.0.4
Attack profile CVSS 3.1 · 3.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-28834.md and follow it. Check whether this project is affected by CVE-2023-28834. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv
- https://github.com/nextcloud/server/pull/36094
- https://hackerone.com/reports/1690510
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv
- https://github.com/nextcloud/server/pull/36094
- https://hackerone.com/reports/1690510
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv
- https://github.com/nextcloud/server/issues/33883
- https://github.com/nextcloud/server/pull/36094
- https://hackerone.com/reports/1690510
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5w64-6c42-rgcv
- https://github.com/nextcloud/server/issues/33883
- https://github.com/nextcloud/server/pull/36094
- https://hackerone.com/reports/1690510