Vulnerability in Gofiber Fiber
CVE-2024-25124
Fiber is a web framework written in go. Prior to version 2.52.1, the CORS middleware allows for insecure configurations that could potentially expose the application to multiple CORS-related vulnerabilities. Specifically, it allows setting the Access-Control-Allow-Origin header to a wildcard (`*`) while also having the Access-Control-Allow-Credentials set to true, which goes against recommended security best practices. The impact of this misconfiguration is high as it can lead to unauthorized access to sensitive user data and expose the system to various types of attacks listed in the PortSwigger article linked in the references. Version 2.52.1 contains a patch for this issue. As a workaround, users may manually validate the CORS configurations in their implementation to ensure that they do not allow a wildcard origin when credentials are enabled. The browser fetch api, as well as browsers and utilities that enforce CORS policies, are not affected by this.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.007 (49.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: -0.000
Affected products
- Gofiber Fiber — versions < 2.52.1
Weakness classification (CWE)
References
- github.com/gofiber/fiber/security/advisories/GHSA-fmg4-x8pw-hjhg (Exploit, Vendor Advisory)
- github.com/gofiber/fiber/commit/f0cd3b44b086544a37886232d0530601f2406c23 (Patch)
- codeql.github.com/codeql-query-help/javascript/js-cors-misconfiguration-for-cre… (Technical Description)
- developer.mozilla.org/en-US/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredenti… (Technical Description)
- fetch.spec.whatwg.org/ (Technical Description)
- github.com/gofiber/fiber/releases/tag/v2.52.1 (Release Notes)
- saturncloud.io/blog/cors-cannot-use-wildcard-in-accesscontrolalloworigin-when-c… (Broken Link)
- blog.portswigger.net/2016/10/exploiting-cors-misconfigurations-for.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-25124?
- CVE-2024-25124 is a critical-severity vulnerability in Gofiber Fiber, classified under Origin Validation Error. CVSS score: 9.4/10. Published 2024-02-21.
- How severe is CVE-2024-25124?
- Critical severity. CVSS v3 base score is 9.4 out of 10.