The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an applications outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an httpoxy issue. NOTE: the vendor states This mitigation has been assigned the identifier CVE-2016-5387; in other words, this is not a CVE ID for a vulnerability.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Http_server | Apache | 2.2.0 (including) | 2.2.31 (including) |
| Http_server | Apache | 2.4.1 (including) | 2.4.23 (including) |