Last revised: 04/28/2017
A vulnerability exists in the PAN-OS GlobalProtect external interface that could allow for an attacker to brute force a username on PAN-OS GlobalProtect external Interface. The vulnerability is caused by PAN-OS provided different responses when supplying login credentials. (Ref # PAN-72769 / CVE-2017-7945)
Successful exploitation of this issue may allow a malicious user to conduct a brute force attack against PAN-OS GlobalProtect external interface.
PAN-OS 6.1.16 and earlier, PAN-OS 7.0.14 and earlier, PAN-OS 7.1.8 and earlier, PAN-OS 8.0.1 and earlier
PAN-OS 6.1.17 and later, PAN-OS 7.0.15 and later, PAN-OS 7.1.9 and later, PAN-OS 8.0.2 and later
Customers that have not configured GlobalProtect are not affected by this issue.
Palo Alto Networks would like to thank Rich Hansen from Plexus for reporting this issue to us.