What is the severity of CVE-2016-4694?

CVE-2016-4694 is classified as a medium severity vulnerability due to potential exploitation by remote attackers.

How do I fix CVE-2016-4694?

To mitigate CVE-2016-4694, upgrade to macOS 10.12 or later and ensure OS X Server is updated to version 5.2 or newer.

Which versions of macOS are affected by CVE-2016-4694?

CVE-2016-4694 affects macOS versions prior to 10.12 and OS X Server versions prior to 5.2.

What is the impact of CVE-2016-4694 on application security?

The impact of CVE-2016-4694 on application security includes potential unauthorized redirection and manipulation of applications by remote attackers.

Vulnerability/
CVE-2016-4694

critical

9.1

CWE

284

25/9/2016

6/8/2024

CVE-2016-4694

Q: What kind of attacks can exploit CVE-2016-4694?

CVE-2016-4694 can be exploited through untrusted CGI client data in the HTTP_PROXY environment variable, allowing potential redirection of applications.

First published: Sun Sep 25 2016(Updated: )

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.

Credit: product-security@apple.com

Affected Software	Affected Version	How to fix
Apple iOS and macOS	<=10.11.6
Apple macOS Server	<=5.1

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2016-4694?
CVE-2016-4694 is classified as a medium severity vulnerability due to potential exploitation by remote attackers.
How do I fix CVE-2016-4694?
To mitigate CVE-2016-4694, upgrade to macOS 10.12 or later and ensure OS X Server is updated to version 5.2 or newer.
What kind of attacks can exploit CVE-2016-4694?
CVE-2016-4694 can be exploited through untrusted CGI client data in the HTTP_PROXY environment variable, allowing potential redirection of applications.
Which versions of macOS are affected by CVE-2016-4694?
CVE-2016-4694 affects macOS versions prior to 10.12 and OS X Server versions prior to 5.2.
What is the impact of CVE-2016-4694 on application security?
The impact of CVE-2016-4694 on application security includes potential unauthorized redirection and manipulation of applications by remote attackers.

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agent/author
agent/description
agent/first-publish-date
agent/event
agent/source
agent/softwarecombine
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/apple
canonical/apple ios and macos
version/apple ios and macos/10.11.6
canonical/apple macos server
version/apple macos server/5.1

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