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CVE-2024-52521

Nextcloud Server has a potential hash collision for background jobs could skip queuing them

Published: Nov 15, 2024Updated: Jan 23, 2025 Sources: CVE List NVD BDUCWE-328
NVD MITRE
2.6CVSSLOW
EPSS Score
0.4%
Top 69.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:LUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-328NVD-CWE-Other

Affected Products

security-advisoriesnextcloud
SaaSSaaS Service
Cloud & SaaS / saas-application
nextcloud servernextcloud
SaaSSaaS Service
Cloud & SaaS / saas-application
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Nextcloud ServerNextcloud GmbH
SaaSSaaS Service
Cloud & SaaS / saas-application
Nextcloud Enterprise ServerNextcloud GmbH
SaaSSaaS Service
Cloud & SaaS / saas-application
nextcloudoss-projectDECloud & SaaSaka nextcloud server
ооо «ред софт»commercialRUOperating Systemsaka red soft
nextcloud gmbhcommercialDECloud & SaaSaka nextcloud server, nextcloud enterprise server, nextcloud calendar

Exploitability

Official Patch Available

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2q6f-gjgj-7hp4
github.com
https://github.com/nextcloud/server/pull/47769
github.com
https://github.com/nextcloud/server/commit/a933ba1fdba77e7d8c6b8ff400e082cf853ea46d
github.com
and 4 more references View all →

Timeline

Published
Nov 15, 2024
Last Updated
Jan 23, 2025

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