Flarum is an open source forum software. Flarum is affected by a vulnerability that allows an attacker to conduct a Blind Server-Side Request Forgery (SSRF) attack or disclose any file on the server, even with a basic user account on any Flarum forum. By uploading a file containing a URL and spoofing the MIME type, an attacker can manipulate the application to execute unintended actions. The vulnerability is due to the behavior of the `intervention/image` package, which attempts to interpret the supplied file contents as a URL, which then fetches its contents. This allows an attacker to exploit the vulnerability to perform SSRF attacks, disclose local file contents, or conduct a blind oracle attack. This has been patched in Flarum version 1.8.0. Users are advised to upgrade. Users unable to upgrade may disable PHP's `allow_url_fopen` which will prevent the fetching of external files via URLs as a temporary workaround for the SSRF aspect of the vulnerability.
References
Configurations
History
21 Nov 2024, 08:18
Type | Values Removed | Values Added |
---|---|---|
References | () https://github.com/flarum/framework/commit/d1059c1cc79fe61f9538f3da55e8f42abbede570 - Patch | |
References | () https://github.com/flarum/framework/security/advisories/GHSA-67c6-q4j4-hccg - Vendor Advisory |
25 Aug 2023, 18:10
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:a:flarum:flarum:*:*:*:*:*:*:*:* | |
First Time |
Flarum flarum
Flarum |
|
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
References | (MISC) https://github.com/flarum/framework/commit/d1059c1cc79fe61f9538f3da55e8f42abbede570 - Patch | |
References | (MISC) https://github.com/flarum/framework/security/advisories/GHSA-67c6-q4j4-hccg - Vendor Advisory |
16 Aug 2023, 21:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2023-08-16 21:15
Updated : 2024-11-21 08:18
NVD link : CVE-2023-40033
Mitre link : CVE-2023-40033
CVE.ORG link : CVE-2023-40033
JSON object : View
Products Affected
flarum
- flarum
CWE
CWE-918
Server-Side Request Forgery (SSRF)