Vulnerability Details : CVE-2016-4694
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.
Products affected by CVE-2016-4694
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:os_x_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-4694
1.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4694
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.1
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2016-4694
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4694
-
https://support.apple.com/HT207171
About the security content of macOS Server 5.2 - Apple SupportVendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
http://www.securityfocus.com/bid/93060
Apple Mac OS X and Mac OS X Server CVE-2016-4694 Security Bypass Vulnerability
-
http://www.securitytracker.com/id/1036853
Apple macOS Server "Proxy:" Header Processing Flaw Lets Remote Users Redirect the Target CGI Application Requests to an Arbitrary Web Proxy in Certain Cases - SecurityTracker
-
https://support.apple.com/HT207170
About the security content of macOS Sierra 10.12 - Apple SupportVendor Advisory
-
http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.html
Apple - Lists.apple.comMailing List;Vendor Advisory
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