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CVE-2016-5137

4.3 · MEDIUM

The CSPSource::schemeMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in Blink, as used in Google Chrome before 52.0.2743.82, does…

Published Jul 23, 2016CWE-200EPSS 1.28%

Overview

CVE-2016-5137 is a medium-severity vulnerability. It was published on July 23, 2016 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.0 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 CSPSource::schemeMatches function in WebKit/Source/core/frame/csp/CSPSource.cpp in the Content Security Policy (CSP) implementation in Blink, as used in Google Chrome before 52.0.2743.82, does not apply http :80 policies to https :443 URLs and does not apply ws :80 policies to wss :443 URLs, which makes it easier for remote attackers to determine whether a specific HSTS web site has been visited by reading a CSP report. NOTE: this vulnerability is associated with a specification change after CVE-2016-1617 resolution.

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

Refgooglechromereleases.blogspot.com/2016/07/stable-channel-update.htmlReflists.opensuse.org/opensuse-security-announce/2016-07/msg00020.htmlReflists.opensuse.org/opensuse-security-announce/2016-07/msg00021.htmlReflists.opensuse.org/opensuse-security-announce/2016-07/msg00022.htmlReflists.opensuse.org/opensuse-security-announce/2016-07/msg00028.htmlRefrhn.redhat.com/errata/RHSA-2016-1485.htmlRefwww.debian.org/security/2016/dsa-3637Refwww.securityfocus.com/bid/92053Refwww.securitytracker.com/id/1036428Refwww.ubuntu.com/usn/USN-3041-1

How CyberStrike helps

Frequently asked questions

What is CVE-2016-5137?

CVE-2016-5137 is a medium-severity vulnerability. It was published on July 23, 2016 and has a CVSS 3.0 base score of 4.3 (MEDIUM).

How severe is CVE-2016-5137?

This vulnerability has a CVSS 3.0 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-2016-5137?

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-2016-5137?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-5137 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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