8.1

CVE-2023-28112

Discourse's SSRF protection missing for some FastImage requests

Discourse is an open-source discussion platform. Prior to version 3.1.0.beta3 of the `beta` and `tests-passed` branches, some user provided URLs were being passed to FastImage without SSRF protection. Insufficient protections could enable attackers to trigger outbound network connections from the Discourse server to private IP addresses. This affects any site running the `tests-passed` or `beta` branches versions 3.1.0.beta2 and prior. This issue is patched in version 3.1.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Discourse ≫ Discourse SwEditionbeta Version < 3.1.0
Discourse ≫ Discourse SwEditionstable Version <= 3.1.0
Discourse ≫ Discourse Version3.1.0 Updatebeta1 SwEditionbeta
Discourse ≫ Discourse Version3.1.0 Updatebeta2 SwEditionbeta
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.58% 0.432
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
security-advisories@github.com 5.9 1.6 4.2
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
CWE-918 Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

https://github.com/discourse/discourse/pull/20710
Patch
https://github.com/discourse/discourse/commit/39c2f63b35d90ebaf67b9604cf1d424e5984203c
Patch
https://github.com/discourse/discourse/security/advisories/GHSA-9897-x229-55gh
Vendor Advisory