CVE-2020-8223 Privilege escalation in Nextcloud Server
A logic error in Nextcloud Server allows malicious users to reshare files with higher permissions than originally assigned, leading to privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-8223?
CVE-2020-8223 is a medium-severity vulnerability in Fedoraproject Fedora, published on 5 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves.
Weakness: CWE-269
Which versions are affected by CVE-2020-8223?
It affects 2 products.
Products include Fedoraproject Fedora, Nextcloud Nextcloud Server.
How do I fix CVE-2020-8223?
No fix has been published for CVE-2020-8223 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8223 being exploited?
There is no known exploitation of CVE-2020-8223 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-wp2j-2549-fwhp.