CVE-2018-16467 Missing authorization in Nextcloud Server
Attackers can access previews of password-protected shared files due to missing authorization checks in Nextcloud Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-16467?
CVE-2018-16467 is a medium-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 30 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares.
Which versions are affected by CVE-2018-16467?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2018-16467?
No fix has been published for CVE-2018-16467 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-16467 being exploited?
There is no known exploitation of CVE-2018-16467 in the wild and no public exploit code.
Other vulnerabilities in Nextcloud Nextcloud Server
- CVE-2021-32802 Preview generation used third-party library not suited for user-generated content in Nextcloud server
- CVE-2023-26482 Scope of workflow operations is not validated in nextcloud server
- CVE-2018-3775 Auth bypass in Nextcloud Server
- CVE-2023-35172 Nextcloud Server password reset endpoint is not brute force protected
- CVE-2023-32320 Nextcloud Server's brute force protection allows someone to send more requests than intended
Sources
Also known as GHSA-wjx4-rv24-8pr4.