CWE
319
Advisory Published
CVE Published
Updated

CVE-2017-7143

First published: Mon Sep 25 2017(Updated: )

An issue was discovered in certain Apple products. macOS before 10.13 is affected. The issue involves the "Captive Network Assistant" component. It allows remote attackers to discover cleartext passwords in opportunistic circumstances by sniffing the network during use of the captive portal browser, which has a UI error that can lead to cleartext transmission without the user's awareness.

Credit: product-security@apple.com Matthew Green Johns Hopkins University

Affected SoftwareAffected VersionHow to fix
Apple Mac OS X<=10.12.6
Apple macOS High Sierra<10.13
10.13

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2017-7143.

  • What is the severity of CVE-2017-7143?

    The severity of CVE-2017-7143 is medium with a severity value of 5.5.

  • Does macOS High Sierra version 10.13 have this vulnerability?

    No, macOS High Sierra version 10.13 is not affected by this vulnerability.

  • How can remote attackers exploit CVE-2017-7143?

    Remote attackers can discover cleartext passwords by sniffing the network during use of the captive portal browser.

  • Is there a fix available for this vulnerability?

    Yes, Apple has provided a fix for this vulnerability. Please refer to the references for more information.

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