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-Forwarded_For). 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 underscores_in_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.
References
| Link | Resource |
|---|---|
| https://github.com/puma/puma/security/advisories/GHSA-9hf4-67fc-4vf4 | Vendor Advisory |
| https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers | Product |
Configurations
Configuration 1 (hide)
|
History
26 Sep 2024, 13:28
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:puma:puma:*:*:*:*:*:ruby:*:* | |
| References | () https://github.com/puma/puma/security/advisories/GHSA-9hf4-67fc-4vf4 - Vendor Advisory | |
| References | () https://nginx.org/en/docs/http/ngx_http_core_module.html#underscores_in_headers - Product | |
| First Time |
Puma puma
Puma |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
| CWE | CWE-444 |
19 Sep 2024, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-09-19 23:15
Updated : 2024-09-26 13:28
NVD link : CVE-2024-45614
Mitre link : CVE-2024-45614
JSON object : View
Products Affected
puma
- puma
CWE
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')