CVE-2024-45614
- Source
- https://cve.org/CVERecord?id=CVE-2024-45614
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-45614.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-45614
- Aliases
- Downstream
- Related
- Published
- 2024-09-19T22:42:33.974Z
- Modified
- 2026-05-18T05:58:57.873458364Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- Header normalization allows for client to clobber proxy set headers in Puma
- Details
-
Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-ForwardedFor). Any users relying on proxy set variables is affected. v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win. Users are advised to upgrade. Nginx has a underscoresin_headers configuration variable to discard these headers at the proxy level as a mitigation. Any users that are implicitly trusting the proxy defined headers for security should immediately cease doing so until upgraded to the fixed versions.
- Database specific
{ "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45614.json", "cwe_ids": [ "CWE-639" ] }- References
-
- https://lists.debian.org/debian-lts-announce/2024/11/msg00004.html
- https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/45xxx/CVE-2024-45614.json
- https://github.com/puma/puma/security/advisories/GHSA-9hf4-67fc-4vf4
- https://nvd.nist.gov/vuln/detail/CVE-2024-45614