Multiple vulnerabilities in Nextcloud Server and Enterprise Server



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-52518
CVE-2024-52525
CWE-ID CWE-287
CWE-312
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Nextcloud Server
Client/Desktop applications / Messaging software

Nextcloud Enterprise Server
Client/Desktop applications / Messaging software

Vendor Nextcloud

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU103061

Risk: Low

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-52518

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to missing password confirmation when changing external storage options. A remote administrator can bypass authentication process and gain access to the session of a user or administrator.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nextcloud Server: 28.0.0 - 30.0.1

Nextcloud Enterprise Server: 28.0.0 - 30.0.1

CPE2.3 External links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vrhf-532w-99rg
https://github.com/nextcloud/server/pull/48373
https://github.com/nextcloud/server/pull/48788
https://github.com/nextcloud/server/pull/48992
https://hackerone.com/reports/2602973


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Cleartext storage of sensitive information

EUVDB-ID: #VU103062

Risk: Low

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

CVE-ID: CVE-2024-52525

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: No

Description

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

The vulnerability exists due to the user password is available in memory of the PHP process. An administrator with physical access can gain access sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nextcloud Server: 28.0.0 - 30.0.1

Nextcloud Enterprise Server: 28.0.0 - 30.0.1

CPE2.3 External links

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w7v5-mgxm-v6gm
https://github.com/nextcloud/server/pull/48915
https://github.com/nextcloud/server/commit/d25a0a2896a2a981939cacb8ee0d555feef22b3b


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.



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