QID 376065

The ntpd in the network time protocol (NTP) before 4.2.8p14, and in 4.3.x before 4.3.100, allows remote attackers to cause a denial-of-service (DoS), either daemon exit or system time change, by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.CVE-2020-13817

Vulnerable Component: BIG-IP APM,LTM,ASM

Affected Versions:
16.0.0
15.1.0
14.1.0 - 14.1.3
13.1.0 - 13.1.3
12.1.0 - 12.1.5
11.6.1 - 11.6.5

QID Detection Logic(Authenticated):
This QID checks for the vulnerable versions of F5 BIG-IP devices using the tmsh command.

An attacker who can send a large number of packets with the spoofed IPv4 address of the upstream server can use this flaw to modify the victim's clock by a limited amount or cause ntpd to exit.