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CVE
PUBLISHED

CVE-2024-39687

Fedify vulnerable to allowing access to internal network resources

AssignerGitHub_M
Reserved2024-06-27
Published2024-07-05
Updated2024-07-08

Description

Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards. At present, when Fedify needs to retrieve an object or activity from a remote activitypub server, it makes a HTTP request to the `@id` or other resources present within the activity it has received from the web. This activity could reference an `@id` that points to an internal IP address, allowing an attacker to send request to resources internal to the fedify server's network. This applies to not just resolution of documents containing activities or objects, but also to media URLs as well. Specifically this is a Server Side Request Forgery attack. Users should upgrade to Fedify version 0.9.2, 0.10.1, or 0.11.1 to receive a patch for this issue.



HIGH: 7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

< 0.9.2
affected

= 0.10.0
affected

= 0.11.0
affected

References

https://github.com/dahlia/fedify/security/advisories/GHSA-p9cg-vqcc-grcx

https://github.com/dahlia/fedify/commit/30f9cf4a175704a04c874f3ea88414c5f1e00b28

https://github.com/dahlia/fedify/commit/c641e976089dd913f649889c1bfb016df04e86ba

cve.org CVE-2024-39687

nvd.nist.gov CVE-2024-39687

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