CVE-2024-24827: No rate limits on POST /uploads endpoint in Discourse
First published: Fri Mar 15 2024(Updated: )
Discourse is an open source platform for community discussion. Without a rate limit on the POST /uploads endpoint, it makes it easier for an attacker to carry out a DoS attack on the server since creating an upload can be a resource intensive process. Do note that the impact varies from site to site as various site settings like `max_image_size_kb`, `max_attachment_size_kb` and `max_image_megapixels` will determine the amount of resources used when creating an upload. The issue is patched in the latest stable, beta and tests-passed version of Discourse. Users are advised to upgrade. Users unable to upgrade should reduce `max_image_size_kb`, `max_attachment_size_kb` and `max_image_megapixels` as smaller uploads require less resources to process. Alternatively, `client_max_body_size` can be reduced in Nginx to prevent large uploads from reaching the server.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Discourse |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-24827?
CVE-2024-24827 is considered a medium severity vulnerability due to the potential for DoS attacks from unrestricted uploads.
How do I fix CVE-2024-24827?
To fix CVE-2024-24827, implement rate limiting on the POST /uploads endpoint in your Discourse application.
What impact does CVE-2024-24827 have on my Discourse server?
The impact of CVE-2024-24827 includes increased risk of DoS attacks, which can lead to server unavailability.
Which versions of Discourse are affected by CVE-2024-24827?
CVE-2024-24827 affects all versions of Discourse that do not have rate limiting on the POST /uploads endpoint.
Is CVE-2024-24827 an exploit for Discourse?
CVE-2024-24827 is a vulnerability that can be exploited to launch DoS attacks, affecting the availability of the Discourse application.
- agent/references
- agent/title
- agent/weakness
- agent/type
- agent/description
- agent/first-publish-date
- collector/epss-latest
- source/FIRST
- agent/epss
- collector/nvd-api
- source/NVD
- agent/author
- agent/severity
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/discourse
- canonical/discourse