CVE-2016-7431 Security feature bypass in n/a
Remote attackers can bypass NTP origin timestamp protection by sending a zero timestamp, undermining authentication mechanisms.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-7431?
CVE-2016-7431 is a medium-severity vulnerability in Ntp Ntp, published on 13 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.
Weakness: CWE-20
Which versions are affected by CVE-2016-7431?
It affects 1 product.
Products include Ntp Ntp.
How do I fix CVE-2016-7431?
Upgrade to a fixed version.
Is CVE-2016-7431 being exploited?
There is no known exploitation of CVE-2016-7431 in the wild and no public exploit code.
Other vulnerabilities in Ntp Ntp
Sources
Also known as DEBIAN-CVE-2016-7431, GHSA-27gj-3475-hjqq.