Improper Restriction of Excessive Authentication Attempts in Nexrcloud Server and Enterprise Server



Published: 2023-05-29
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-32319
CWE-ID CWE-307
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Nextcloud Server
Client/Desktop applications / Messaging software

Nextcloud Enterprise Server
Client/Desktop applications / Messaging software

Vendor Nextcloud

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Restriction of Excessive Authentication Attempts

EUVDB-ID: #VU76591

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2023-32319

CWE-ID: CWE-307 - Improper Restriction of Excessive Authentication Attempts

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing brute force protection on the WebDAV endpoints. A remote user can brute-force user credentials when the provided user name is not an email address.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nextcloud Server: 24.0.0 - 25.0.4

Nextcloud Enterprise Server: 23.0.0 - 25.0.4

CPE2.3 External links

http://github.com/nextcloud/security-advisories/security/advisories/GHSA-mr7q-xf62-fw54
http://github.com/nextcloud/server/pull/37227


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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