CVE-2024-52521
Nextcloud Server Background Job Collider Vulnerability
Description
Nextcloud Server is a self hosted personal cloud system. MD5 hashes were used to check background jobs for their uniqueness. This increased the chances of a background job with arguments falsely being identified as already existing and not be queued for execution. By changing the Hash to SHA256 the probability was heavily decreased. It is recommended that the Nextcloud Server is upgraded to 28.0.10, 29.0.7 or 30.0.0.
INFO
Published Date :
Nov. 15, 2024, 5:15 p.m.
Last Modified :
Jan. 23, 2025, 2:52 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-52521.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-52521 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-52521 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 23, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* versions from (including) 28.0.0 up to (excluding) 28.0.10 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* versions from (including) 28.0.0 up to (excluding) 28.0.10 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* versions from (including) 29.0.0 up to (excluding) 29.0.7 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* versions from (including) 29.0.0 up to (excluding) 29.0.7 Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2q6f-gjgj-7hp4 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2q6f-gjgj-7hp4 Vendor Advisory Changed Reference Type https://github.com/nextcloud/server/commit/a933ba1fdba77e7d8c6b8ff400e082cf853ea46d No Types Assigned https://github.com/nextcloud/server/commit/a933ba1fdba77e7d8c6b8ff400e082cf853ea46d Patch Changed Reference Type https://github.com/nextcloud/server/pull/47769 No Types Assigned https://github.com/nextcloud/server/pull/47769 Issue Tracking -
CVE Received by [email protected]
Nov. 15, 2024
Action Type Old Value New Value Added Description Nextcloud Server is a self hosted personal cloud system. MD5 hashes were used to check background jobs for their uniqueness. This increased the chances of a background job with arguments falsely being identified as already existing and not be queued for execution. By changing the Hash to SHA256 the probability was heavily decreased. It is recommended that the Nextcloud Server is upgraded to 28.0.10, 29.0.7 or 30.0.0. Added Reference GitHub, Inc. https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2q6f-gjgj-7hp4 [No types assigned] Added Reference GitHub, Inc. https://github.com/nextcloud/server/pull/47769 [No types assigned] Added Reference GitHub, Inc. https://github.com/nextcloud/server/commit/a933ba1fdba77e7d8c6b8ff400e082cf853ea46d [No types assigned] Added CWE GitHub, Inc. CWE-328 Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-52521 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-52521
weaknesses.