VulnerabilityModified

CVE-2016-4694

CRITICAL 9.1EPSS 1.34%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.0: 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS: 1.34% probability · 70th percentile
CISA KEV: Not listed
Weakness: CWE-284
Affected: apple/mac os x · apple/os x server
Source: product-security@apple.com

References

http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.htmlMailing List, Vendor Advisory
http://www.securityfocus.com/bid/93060
http://www.securitytracker.com/id/1036853
https://support.apple.com/HT207170Vendor Advisory
https://support.apple.com/HT207171Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlMailing List, Vendor Advisory
http://lists.apple.com/archives/security-announce/2016/Sep/msg00009.htmlMailing List, Vendor Advisory
http://www.securityfocus.com/bid/93060
http://www.securitytracker.com/id/1036853
https://support.apple.com/HT207170Vendor Advisory
https://support.apple.com/HT207171Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.