CVE-2023-32074 Nextcloud user_oidc app is missing brute force protection
Attackers can bypass authentication in the Nextcloud user_oidc app due to missing brute force protection, potentially taking over accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-32074?
CVE-2023-32074 is a high-severity authentication bypass vulnerability in nextcloud security-advisories, published on 25 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
user_oidc app is an OpenID Connect user backend for Nextcloud. Authentication can be broken/bypassed in user_oidc app. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.2
Weakness: CWE-307
Which versions are affected by CVE-2023-32074?
It affects 1 product.
Products include Nextcloud User Oidc.
How do I fix CVE-2023-32074?
No fix has been published for CVE-2023-32074 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-32074 being exploited?
There is no known exploitation of CVE-2023-32074 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2024-37312 Nextcloud user_oidc app's ID4me feature is available even when disabled
- CVE-2024-37886 Nextcloud user_oidc's ID4me does not validate signature or expiration
- CVE-2023-39953 Issuer not verified from obtained token in user_oidc
- CVE-2023-28848 CSRF protection on user_oidc login returned the expected token in case of an error
- CVE-2026-45284 Nextcloud: Wrong condition in the User OIDC app's LdapService allowed deleted LDAP users to authenticate
Sources
Also known as GHSA-x8mc-84wj-rf34.