#VU103058 Insecure Storage of Sensitive Information in Nextcloud Server and Nextcloud Enterprise Server - CVE-2024-52519

Vulnerability identifier: #VU103058

Vulnerability risk: Low

CVSSv4.0: 0.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-52519

CWE-ID: CWE-922

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Nextcloud Server
Client/Desktop applications / Messaging software
Nextcloud Enterprise Server
Client/Desktop applications / Messaging software

Vendor: Nextcloud

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the OAuth2 client secrets are stored in a recoverable way. An administrator with physical access can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nextcloud Server: 28.0.0 - 29.0.6

Nextcloud Enterprise Server: 27.0.0 - 29.0.6

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External links
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fvpc-8hq6-jgq2
https://github.com/nextcloud/server/pull/47635
https://github.com/nextcloud/server/commit/09b8aea8f6783514bffe00df6abbf9fa542faac5

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.