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CVE-2016-4763

6.8 · MEDIUM

WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle atta…

Published Sep 25, 2016CWE-310EPSS 1.20%

Overview

CVE-2016-4763 is a medium-severity vulnerability. It was published on September 25, 2016 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

WKWebView in WebKit in Apple iOS before 10, iTunes before 12.5.1 on Windows, and Safari before 10 does not properly verify X.509 certificates from HTTPS servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.apple.com/archives/security-announce/2016/Sep/msg00007.htmlReflists.apple.com/archives/security-announce/2016/Sep/msg00008.htmlReflists.apple.com/archives/security-announce/2016/Sep/msg00012.htmlRefwww.securityfocus.com/bid/93066Refwww.securitytracker.com/id/1036854Refsupport.apple.com/HT207143Refsupport.apple.com/HT207157Refsupport.apple.com/HT207158Reflists.apple.com/archives/security-announce/2016/Sep/msg00007.htmlReflists.apple.com/archives/security-announce/2016/Sep/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2016-4763?

CVE-2016-4763 is a medium-severity vulnerability. It was published on September 25, 2016 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

How severe is CVE-2016-4763?

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2016-4763?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-4763?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-4763 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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