CVE-2018-16463 Auth bypass in Nextcloud Server
An attacker can hijack sessions to access password-protected shares in Nextcloud Server, requiring an upgrade to secure the platform.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-16463?
CVE-2018-16463 is a low-severity authentication bypass vulnerability in Nextcloud Nextcloud Server, published on 30 Oct 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.
Weakness: CWE-384
Which versions are affected by CVE-2018-16463?
It affects 1 product.
Products include Nextcloud Nextcloud Server.
How do I fix CVE-2018-16463?
No fix has been published for CVE-2018-16463 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-2018-16463 being exploited?
There is no known exploitation of CVE-2018-16463 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-67vq-qwwf-fc2h.