Security Features in ntp - CVE-2019-11331
Published: April 19, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU36001
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-11331
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Affected software
ntp
EMC Isilon OneFS
EMC Isilon OneFS
How to mitigate CVE-2019-11331
Install update from vendor's website.
EMC Isilon OneFS - update to 8.2.2