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Junos NTP Server Amplification Denial of Service Vulnerability
Information
Severity
Severity
Medium
Family
Family
JunOS Local Security Checks
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
9 years ago
Modified
Modified
5 years ago
Summary
DoS in NTP server
Insight
Insight
When an NTP client or server is enabled within the [edit system ntp] hierarchy level of the Junos configuration, REQ_MON_GETLIST and REQ_MON_GETLIST_1 control messages supported by the monlist feature within NTP may allow remote attackers to cause a denial of service. NTP is not enabled in Junos by default.
Affected Software
Affected Software
Junos OS 11.4, 12.1, 12.2, 12.3, 13.1, 13.2, 13.3
Detection Method
Detection Method
Checks if a vulnerable OS build is present on the target host.
Solution
Solution
New builds of Junos OS software are available from Juniper.