SB2023052907 - Improper Restriction of Excessive Authentication Attempts in Nextcloud user_oidc app

Description

This security bulletin contains information about 1 vulnerability.

1) Improper Restriction of Excessive Authentication Attempts (CVE-ID: CVE-2023-32074)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

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

The vulnerability exists due to missing brute force protection. A remote user can brute force authentication on the application.

Remediation

Install update from vendor's website.

References

• https://github.com/nextcloud/user_oidc/pull/615
• https://hackerone.com/reports/1954711
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x8mc-84wj-rf34