sbomify Insights

Search by CVE or GitHub advisory id, package name or title.

CVE-2023-28847 Nextcloud Server missing brute force protection for passwords of password protected share links

Low 3.1 Published Updated

Attackers can brute force passwords for protected share links due to missing rate limiting, potentially gaining unauthorized access to shared files.

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-2023-28847?

CVE-2023-28847 is a low-severity vulnerability in Nextcloud Nextcloud Server, published on 25 Apr 2023. 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

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. In Nextcloud Server 24.0.0 prior to 24.0.11 and 25.0.0 prior to 25.0.5; as well as Nextcloud Server Enterprise 23.0.0 prior to 23.0.12.6, 24.0.0 prior to 24.0.11, and 25.0.0 prior to 25.0.5; an attacker is not restricted in verifying passwords of share links so they can just start brute forcing the password. Nextcloud Server 24.0.11 and 25.0.5 and Nextcloud Enterprise Server 23.0.12.6, 24.0.11, and 25.0.5 contain a fix for this issue. No known workarounds are available.

Weakness: CWE-307

Which versions are affected by CVE-2023-28847?

It affects 1 product.

Products include Nextcloud Nextcloud Server.

How do I fix CVE-2023-28847?

No fix has been published for CVE-2023-28847 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-28847 being exploited?

There is no known exploitation of CVE-2023-28847 in the wild and no public exploit code.

All Nextcloud Nextcloud Server vulnerabilities

Sources

Also known as GHSA-r5wf-xj97-3w7w.

Is CVE-2023-28847 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free