CVE-2017-8390 Vulnerability in the PAN-OS DNS Proxy
A Remote Code Execution vulnerability exists in the PAN-OS DNS Proxy. This issue affects customers who have DNS Proxy enabled in PAN-OS. This issue affects both the Data and Management planes of the firewall. When DNS Proxy processes a specially crafted fully qualified domain names (FQDN), it is possible to execute code on the firewall. (ref # PAN-77516 / CVE-2017-8390).
Successful exploitation of this issue could allow an attacker to execute code on the firewall.
This issue affects PAN-OS 6.1.17 and earlier, PAN-OS 7.0.15 and earlier, PAN-OS 7.1.9 and earlier, PAN-OS 8.0.2 and earlier
|PAN-OS 8.0||<= 8.0.2||>= 8.0.3|
|PAN-OS 7.1||<= 7.1.9||>= 7.1.10|
|PAN-OS 7.0||<= 7.0.15||>= 7.0.16|
|PAN-OS 6.1||<= 6.1.17||>= 6.1.18|
CVSSv3.1 Base Score:9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
PAN-OS 6.1.18 and later, PAN-OS 7.0.16 and later, PAN-OS 7.1.10 and later, PAN-OS 8.0.3 and later
Workarounds and Mitigations
Palo Alto Networks recommends disabling DNS Proxy for those customers who are affected and are unable to apply the update.