CVE-2016-4745

medium

Description

The Kerberos 5 (aka krb5) PAM module in Apple OS X before 10.12 does not use constant-time operations for determining username validity, which makes it easier for remote attackers to enumerate user accounts via a timing side-channel attack.

References

https://support.apple.com/HT207170

http://www.securitytracker.com/id/1036858

http://www.securityfocus.com/bid/93055

http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html

Details

Source: Mitre, NVD

Published: 2016-09-25

Updated: 2017-07-30

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N