CVE-2024-52517: nextcloud server — Fix

Description

Nextcloud Server is a self hosted personal cloud system. After storing "Global credentials" on the server, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the Nextcloud Server is upgraded to 28.0.11, 29.0.8 or 30.0.1 and Nextcloud Enterprise Server is upgraded to 25.0.13.13, 26.0.13.9, 27.1.11.9, 28.0.11, 29.0.8 or 30.0.1.

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CVSS v3.1 Score

4.6

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N

Weakness Type (CWE)

CWE-200 CWE-200

Affected Products

Vendor	Product	Versions
nextcloud	nextcloud_server	25.0.0 — 25.0.13.13
nextcloud	nextcloud_server	26.0.0 — 26.0.13.9
nextcloud	nextcloud_server	27.0.0 — 27.1.11.9
nextcloud	nextcloud_server	28.0.0 — 28.0.11
nextcloud	nextcloud_server	28.0.0 — 28.0.11
nextcloud	nextcloud_server	29.0.0 — 29.0.8
nextcloud	nextcloud_server	29.0.0 — 29.0.8
nextcloud	nextcloud_server	30.0.0 — 30.0.1
nextcloud	nextcloud_server	30.0.0 — 30.0.1

References

Advisories & Patches

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x9q3-c7f8-3rcg https://github.com/nextcloud/server/commit/c45ed55f959ff54f3ea23dd2ae1a5868a075c9fe

Other References

https://github.com/nextcloud/server/pull/48359 https://hackerone.com/reports/2554079

Frequently Asked Questions

What is CVE-2024-52517? +

Nextcloud Server is a self hosted personal cloud system. After storing "Global credentials" on the server, the API returns them and adds them into the frontend again, allowing to read them in plain text when an attacker already has access to an active session of a user. It is recommended that the Nextcloud Server is upgraded to 28.0.11, 29.0.8 or 30.0.1 and Nextcloud Enterprise Server is upgraded to 25.0.13.13, 26.0.13.9, 27.1.11.9, 28.0.11, 29.0.8 or 30.0.1. It has a CVSS v3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2024-52517? +

CVE-2024-52517 has a CVSS v3.1 score of 4.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-52517? +

CVE-2024-52517 affects products from nextcloud, specifically: nextcloud_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-52517? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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