"value":"An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.0 versions earlier than 8.0.21; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6."
"value":"This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.0.21, PAN-OS 8.1.13, PAN-OS 9.0.6, and all later PAN-OS versions."
}
],
"source":{
"defect":[
"PAN-118957"
],
"discovery":"EXTERNAL"
},
"timeline":[
{
"lang":"eng",
"time":"2020-05-13T16:00:00.000Z",
"value":"Initial publication"
}
],
"work_around":[
{
"lang":"eng",
"value":"Ensure that PAN-OS communicates to Kerberos server over a secured network with access restricted to trusted users.\n\nPlease review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com."