Vulnerability identifier: #VU598

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-4763

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apple Safari
Client/Desktop applications / Web browsers
iTunes
Client/Desktop applications / Multimedia software
Apple iOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description
The vulnerability allows a remote privileged user to obtain network traffic.
The weakness is caused by certificate validation flaw that is used to read and modify network traffic from applications that use WKWebView with HTTPS.
Successful exploitation of the vulnerability allows a malicious user to gain access to network traffic.

Mitigation
Update to 10.0.

Vulnerable software versions

Apple Safari: 9.0 - 9.1.3

iTunes: 12.0.1.26 - 12.4.3.1

Apple iOS: 9.2 - 9.2.1, 9.3.0 - 9.3.5, 9.1.0, 9.0.0 - 9.0.2

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External links
http://support.apple.com/en-us/HT207157
http://support.apple.com/en-us/HT207158
http://support.apple.com/en-us/HT207157
http://support.apple.com/cs-cz/HT207143

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.