CVE-2016-4745
published 2016-09-25CVE-2016-4745: 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…
PriorityP430medium5.3CVSS 3.0
AVNACLPRNUINSUCLINAN
EPSS
1.76%
75.6th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | mac_os_x | <= 10.11.6 | — |
| apple | macos_sierra | — | — |
CVSS provenance
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
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GHSA
GHSA-895f-xj7j-vc89: The Kerberos 5 (aka krb5) PAM module in Apple OS X before 10
ghsa_unreviewed·2022-05-17
CVE-2016-4745 [MEDIUM] CWE-200 GHSA-895f-xj7j-vc89: The Kerberos 5 (aka krb5) PAM module in Apple OS X before 10
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.
Apple
CVE-2016-4745: macOS Sierra 10.12
vendor_apple·2016-09-20·CVSS 5.3
CVE-2016-4745 [MEDIUM] CVE-2016-4745: macOS Sierra 10.12
Apple Security Update: About the security content of macOS Sierra 10.12
Product: macOS Sierra
Version: 10.12
CVE: CVE-2016-4745
Component: Kerberos v5 PAM module
Impact: A remote attacker may determine the existence of user accounts
Description: A timing side channel allowed an attacker to determine the existence of user accounts on a system. This issue was addressed by introducing constant time checks.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlhttp://www.securityfocus.com/bid/93055http://www.securitytracker.com/id/1036858https://support.apple.com/HT207170http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.htmlhttp://www.securityfocus.com/bid/93055http://www.securitytracker.com/id/1036858https://support.apple.com/HT207170
2016-09-25
Published