CVE-2019-11331 Other in n/a

High 8.1 Published 18 Apr 2019 Updated 4 Aug 2024

The NTP protocol's use of a fixed port facilitates off-path attacks, allowing remote attackers to bypass security controls.

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-2019-11331?

CVE-2019-11331 is a high-severity vulnerability in Ntp Ntp, published on 18 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Network Time Protocol (NTP), as specified in RFC 5905, uses port 123 even for modes where a fixed port number is not required, which makes it easier for remote attackers to conduct off-path attacks.

Which versions are affected by CVE-2019-11331?

It affects 1 product.

Products include Ntp Ntp.

How do I fix CVE-2019-11331?

No fix has been published for CVE-2019-11331 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-11331 being exploited?

There is no known exploitation of CVE-2019-11331 in the wild and no public exploit code.

All Ntp Ntp vulnerabilities

Sources

Also known as GHSA-2c4g-qfqp-42mh.