Last Modified: Jan 06, 2023
Affected Product:
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BIG-IP AFM
Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1
Opened: Apr 05, 2022
Severity: 4-Minor
When the DNS cache is activated, the NXDOMAIN DoS vector does not increase for the virtual server context. As a result, NXDOMAIN flood attack is never detected/mitigated at the virtual server context. At the device level, NXDOMAIN stats are incorrect.
NXDOMAIN flood attack is not detected/mitigated at the virtual server context.
-- DNS cache is activated -- An NXDOMAIN DoS vector occurs
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