CVE-2016-4745 Information disclosure in n/a
Remote attackers can enumerate valid user accounts on macOS via timing side-channels in the Kerberos PAM module.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-4745?
CVE-2016-4745 is a medium-severity vulnerability in Apple Mac Os X, published on 25 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2016-4745?
It affects 1 product.
Products include Apple Mac Os X.
How do I fix CVE-2016-4745?
No fix has been published for CVE-2016-4745 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-4745 being exploited?
There is no known exploitation of CVE-2016-4745 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as GHSA-895f-xj7j-vc89.