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CVE-2019-11331

Date: April 18, 2019

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.

Severity Score

8.1

Related Resources (8)

Url: https://access.redhat.com/security/cve/CVE-2019-11331

Url: https://support.f5.com/csp/article/K09940637?utm_source=f5support&utm_medium=RSS

Url: https://nvd.nist.gov/vuln/detail/CVE-2019-11331

Url: https://tools.ietf.org/html/draft-gont-ntp-port-randomization-00

Url: https://support.f5.com/csp/article/K09940637?utm_source=f5support&%3Butm_medium=RSS

Url: https://support.f5.com/csp/article/K09940637

Url: http://www.securityfocus.com/bid/108010

Url: https://www.mend.io/vulnerability-database/CVE-2019-11331

Severity Score

8.1

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:	8.1
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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