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CVE-2015-5859

4.3 · MEDIUM

The CFNetwork HTTPProtocol component in Apple iOS before 9 and OS X before 10.11 does not properly recognize the HSTS preload list during a Safari private-browsing session, which makes it easier fo…

Published Nov 22, 2015appleCWE-200EPSS 1.45%

Overview

CVE-2015-5859 is a medium-severity vulnerability affecting apple mac_os_x. It was published on November 22, 2015 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The CFNetwork HTTPProtocol component in Apple iOS before 9 and OS X before 10.11 does not properly recognize the HSTS preload list during a Safari private-browsing session, which makes it easier for remote attackers to obtain sensitive information by sniffing the network.

Remediation

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. 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.

Affected products

VendorProductVersionsStatus
applemac_os_x0Affected
appleiphone_os0Affected

References

Refsupport.apple.com/HT205212Refsupport.apple.com/HT205267Refsupport.apple.com/HT205212Refsupport.apple.com/HT205267

How CyberStrike helps

Frequently asked questions

What is CVE-2015-5859?

CVE-2015-5859 is a medium-severity vulnerability affecting apple mac_os_x. It was published on November 22, 2015 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2015-5859?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-5859?

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. 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-2015-5859?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-5859 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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