CVE-2024-39895: directus DoS — Exploit & Fix

Description

Directus is a real-time API and App dashboard for managing SQL database content. A denial of service (DoS) attack by field duplication in GraphQL is a type of attack where an attacker exploits the flexibility of GraphQL to overwhelm a server by requesting the same field multiple times in a single query. This can cause the server to perform redundant computations and consume excessive resources, leading to a denial of service for legitimate users. Request to the endpoint /graphql are sent when visualizing graphs generated at a dashboard. By modifying the data sent and duplicating many times the fields a DoS attack is possible. This vulnerability is fixed in 10.12.0.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
monospace	directus	< 10.12.0

References

Advisories & Patches

https://github.com/directus/directus/commit/543b345695071c1de61a35004bd063fe59dba0c8 https://github.com/directus/directus/security/advisories/GHSA-7hmh-pfrp-vcx4 https://github.com/directus/directus/commit/543b345695071c1de61a35004bd063fe59dba0c8 https://github.com/directus/directus/security/advisories/GHSA-7hmh-pfrp-vcx4

Exploits

https://github.com/directus/directus/security/advisories/GHSA-7hmh-pfrp-vcx4 https://github.com/directus/directus/security/advisories/GHSA-7hmh-pfrp-vcx4

Frequently Asked Questions

What is CVE-2024-39895? +

Directus is a real-time API and App dashboard for managing SQL database content. A denial of service (DoS) attack by field duplication in GraphQL is a type of attack where an attacker exploits the flexibility of GraphQL to overwhelm a server by requesting the same field multiple times in a single query. This can cause the server to perform redundant computations and consume excessive resources, leading to a denial of service for legitimate users. Request to the endpoint /graphql are sent when visualizing graphs generated at a dashboard. By modifying the data sent and duplicating many times the fields a DoS attack is possible. This vulnerability is fixed in 10.12.0. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-39895? +

CVE-2024-39895 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-39895? +

CVE-2024-39895 affects products from monospace, specifically: directus. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39895? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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