CVEvulnerability
CVE-2019-11331
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-04-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 8.1 HIGH — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
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.
Affected configurations
• ntp ntp
References
- http://www.securityfocus.com/bid/108010 Third Party Advisory
- https://support.f5.com/csp/article/K09940637 support.f5.com
- https://support.f5.com/csp/article/K09940637?utm_source=f5support&%3Butm_medium=RSS support.f5.com
- https://tools.ietf.org/html/draft-gont-ntp-port-randomization-00 Third Party Advisory
- http://www.securityfocus.com/bid/108010 Third Party Advisory
- https://support.f5.com/csp/article/K09940637 support.f5.com
- https://support.f5.com/csp/article/K09940637?utm_source=f5support&%3Butm_medium=RSS support.f5.com
- https://tools.ietf.org/html/draft-gont-ntp-port-randomization-00 Third Party Advisory