CVE-2020-8118 Server-side request forgery in Nextcloud Server
Authenticated attackers can perform server-side request forgery in Nextcloud Server to detect local and remote services via the calendar application.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-8118?
CVE-2020-8118 is a medium-severity server-side request forgery vulnerability in Nextcloud Nextcloud Server, published on 4 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.
Weakness: CWE-918
Which versions are affected by CVE-2020-8118?
It affects 3 products.
Products include Nextcloud Nextcloud Server, Novell Suse Linux Enterprise Server, Opensuse Backports Sle.
How do I fix CVE-2020-8118?
Upgrade to a fixed version.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2020-8118 being exploited?
There is no known exploitation of CVE-2020-8118 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-gwpm-3v8h-j4wh.