CVE-2023-40180

Denial of service vulnerability in silverstripe-graphql via recursive queries

Description

silverstripe-graphql is a package which serves Silverstripe data in GraphQL representations. An attacker could use a recursive graphql query to execute a Distributed Denial of Service attack (DDOS attack) against a website. This mostly affects websites with publicly exposed graphql schemas. If your Silverstripe CMS project does not expose a public facing graphql schema, a user account is required to trigger the DDOS attack. If your site is hosted behind a content delivery network (CDN), such as Imperva or CloudFlare, this may further mitigate the risk. This issue has been addressed in versions 3.8.2, 4.1.3, 4.2.5, 4.3.4, and 5.0.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.58%
Vendor Advisory silverstripe.org
Affected: silverstripe silverstripe-graphql
Published at:
Updated at:

References

Link Tags
https://github.com/silverstripe/silverstripe-graphql/security/advisories/GHSA-v23w-pppm-jh66 third party advisory
https://github.com/silverstripe/silverstripe-graphql/commit/f6d5976ec4608e51184b0db1ee5b9e9a99d2501c patch
https://docs.silverstripe.org/en/developer_guides/graphql/security_and_best_practices/recursive_or_complex_queries mitigation
https://github.com/silverstripe/silverstripe-graphql/tree/3.8#recursive-or-complex-queries third party advisory
https://www.silverstripe.org/download/security-releases/CVE-2023-40180 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-40180?
CVE-2023-40180 has been scored as a high severity vulnerability.
How to fix CVE-2023-40180?
To fix CVE-2023-40180, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-40180 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-40180 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-40180?
CVE-2023-40180 affects silverstripe silverstripe-graphql.
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