National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-4694 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.1 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N (V3 legend)
Impact Score: 5.2
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html Mailing List Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.html Mailing List Vendor Advisory
http://www.securityfocus.com/bid/93060
http://www.securitytracker.com/id/1036853
https://support.apple.com/HT207170 Vendor Advisory
https://support.apple.com/HT207171 Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
10.11.6
 cpe:2.3:o:apple:os_x_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
5.1


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-4694
NVD Published Date:
09/25/2016
NVD Last Modified:
07/29/2017