CVE-2023-40180
An attacker could use a recursive graphql query to execute a Distributed Denial of Service attack (DDOS attack) against a website.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.90% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- silverstripe/graphql
- Source
- security-advisories@github.com
References
- https://docs.silverstripe.org/en/developer_guides/graphql/security_and_best_practices/recursive_or_complex_queriesMitigation
- https://github.com/silverstripe/silverstripe-graphql/commit/f6d5976ec4608e51184b0db1ee5b9e9a99d2501cPatch
- https://github.com/silverstripe/silverstripe-graphql/security/advisories/GHSA-v23w-pppm-jh66Third Party Advisory
- https://github.com/silverstripe/silverstripe-graphql/tree/3.8#recursive-or-complex-queriesThird Party Advisory
- https://www.silverstripe.org/download/security-releases/CVE-2023-40180Vendor Advisory
- https://docs.silverstripe.org/en/developer_guides/graphql/security_and_best_practices/recursive_or_complex_queriesMitigation
- https://github.com/silverstripe/silverstripe-graphql/commit/f6d5976ec4608e51184b0db1ee5b9e9a99d2501cPatch
- https://github.com/silverstripe/silverstripe-graphql/security/advisories/GHSA-v23w-pppm-jh66Third Party Advisory
- https://github.com/silverstripe/silverstripe-graphql/tree/3.8#recursive-or-complex-queriesThird Party Advisory
- https://www.silverstripe.org/download/security-releases/CVE-2023-40180Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.