CVE-2016-4694
Publication date 25 September 2016
Last updated 25 August 2025
Ubuntu priority
Description
The Apache HTTP Server in Apple OS X before 10.12 and OS X Server before 5.2 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted CGI 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, a related issue to CVE-2016-5387.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| apache2 | 16.04 LTS xenial |
Not affected
|
| 14.04 LTS trusty |
Not affected
|
|
Notes
mdeslaur
this is probably an apple-specific CVE for the same issue as CVE-2016-5387, marking as not-affected
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.1 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |