CVE-2020-8259 Weak cryptography in Nextcloud Server
An attacker can replace server-side encryption keys in Nextcloud Server, potentially compromising data confidentiality and integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8259?
CVE-2020-8259 is a high-severity vulnerability in Nextcloud Nextcloud Server, published on 16 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.
Weakness: CWE-522
Which versions are affected by CVE-2020-8259?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2020-8259?
No fix has been published for CVE-2020-8259 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-8259 being exploited?
There is no known exploitation of CVE-2020-8259 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-548f-j4fj-64c5.