What is CVE-2017-7143?

CVE-2017-7143 is a medium-severity vulnerability in Apple Mac Os X, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.5/10. Published 2017-10-23.

How severe is CVE-2017-7143?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple Mac Os X

CVE-2017-7143

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.

EPSS: 0.003 (25.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apple Mac_os_x
N/a — versions n/a

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

product-security@apple.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
product-security@apple.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2017-7143?: CVE-2017-7143 is a medium-severity vulnerability in Apple Mac Os X, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.5/10. Published 2017-10-23.
How severe is CVE-2017-7143?: Medium severity. CVSS v3 base score is 5.5 out of 10.