CVE-2023-6199 Book Stack v23.10.2 - LFR via Blind SSRF
An attacker can exploit Server-Side Request Forgery in BookStack to filter and read local files on the server.
- 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-2023-6199?
CVE-2023-6199 is a medium-severity server-side request forgery vulnerability in BookStack, published on 20 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Book Stack version 23.10.2 allows filtering local files on the server. This is possible because the application is vulnerable to SSRF.
Weakness: CWE-918
Which versions are affected by CVE-2023-6199?
It affects 1 product.
Products include Bookstackapp Bookstack.
How do I fix CVE-2023-6199?
No fix has been published for CVE-2023-6199 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2023-6199 being exploited?
There is no known exploitation of CVE-2023-6199 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in BookStack
- CVE-2020-5256 Remote Code Execution Through Image Uploads in BookStack
- CVE-2020-26210 Cross-Site Scripting in BookStack
- CVE-2020-26211 Cross-Site Scripting in BookStack
- CVE-2022-0877 Cross-site Scripting (XSS) - Stored in bookstackapp/bookstack
- CVE-2021-3915 Unrestricted Upload of File with Dangerous Type in bookstackapp/bookstack
Sources
Also known as GHSA-fwg4-q55q-w62p.