CVE-2018-5538

published 2018-07-25

CVE-2018-5538: On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not…

Priority P4 15 low 3.7 CVSS 3.0

AV N AC H PR N UI N S U C N I L A N

On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not listed in the 'Allow NOTIFY From' configuration parameter when the db variable "dnsexpress.notifyport" is set to any value other than the default of "0".

Affected

14 ranges

Vendor	Product	Version range	Fixed in
f5	big-ip_dns	—	—
f5	big-ip_domain_name_system	<= 13.1.0.7	—
f5	big-ip_domain_name_system	12.1.3 – 12.1.3.5	—
f5	big-ip_global_traffic_manager	12.1.3 – 12.1.3.5	—
f5	big-ip_global_traffic_manager	13.1.0 – 13.1.0.7	—
f5	big-ip_gtm	—	—
f5	big-ip_link_controller	—	—
f5	big-ip_link_controller	12.1.3 – 12.1.3.5	—
f5	big-ip_link_controller	13.1.0 – 13.1.0.7	—
f5	big-ip_local_traffic_manager	12.1.3 – 12.1.3.5	—
f5	big-ip_local_traffic_manager	13.1.0 – 13.1.0.7	—
f5	big-ip_ltm	—	—
f5_networks_inc	big-ip	—	—
f5_networks_inc	big-ip	—	—

CVSS provenance

nvd v3.0 3.7 LOW CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

nvd v2.0 4.3 MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:N

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.