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CVE-2016-5387

Published: 18 July 2016

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 application's 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.

Priority

Medium

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
apache2
Launchpad, Ubuntu, Debian
upstream Needs triage

wily
Released (2.4.12-2ubuntu2.1)
precise
Released (2.2.22-1ubuntu1.11)
trusty
Released (2.4.7-1ubuntu4.13)
xenial
Released (2.4.18-2ubuntu3.1)

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H