Last Modified: Oct 25, 2024
Affected Product(s):
BIG-IP Install/Upgrade, LTM
Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 15.0.0, 15.0.1, 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, 15.1.8.2, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4
Fixed In:
16.1.4, 15.1.9, 15.0.1.1, 14.1.2.1
Opened: Mar 04, 2019 Severity: 4-Minor
If a firewall is configured on the management port with an ICMP rule, after upgrading to v14.1.x or later, the ICMP rule does not work.
ICMP packets cannot be blocked with a firewall rule to drop on the management port. ICMP packets are allowed from the management port and will not increase the counter even if explicitly allowed by a rule.
- Firewall is configured on the management port. - Firewall is configured with an ICMP rule to block. - Firewall is configured with an ICMP rule to allow.
Run the following commands after upgrading to v14.1.x or later from earlier versions. # /sbin/iptables -N id760355 # /sbin/iptables -I INPUT 1 -j id760355 # /sbin/iptables -A id760355 -i mgmt -p icmp --icmp-type 8 -s 172.28.4.32 -j DROP
ICMP firewall rule has been moved from the f5-required to f5-default.