CVE-2016-4694

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.

Category

9.1
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.12% Top 25%
Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/93060 vdb entry
https://support.apple.com/HT207171 vendor advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html vendor advisory mailing list
http://www.securitytracker.com/id/1036853 vdb entry
https://support.apple.com/HT207170 vendor advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.html vendor advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2016-4694?
CVE-2016-4694 has been scored as a critical severity vulnerability.
How to fix CVE-2016-4694?
To fix CVE-2016-4694, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-4694 being actively exploited in the wild?
It is possible that CVE-2016-4694 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.