A vulnerability has been found in Palo Alto PAN-OS up to 7.1.21/8.0.14/8.1.5 (Firewall Software) and classified as critical. This vulnerability affects some unknown functionality of the component External Dynamics List Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The PAN-OS external dynamics lists in PAN-OS 7.1.21 and earlier, PAN-OS 8.0.14 and earlier, and PAN-OS 8.1.5 and earlier, may allow an attacker that is authenticated in Next Generation Firewall with write privileges to External Dynamic List configuration to inject arbitrary JavaScript or HTML.

The bug was discovered 01/23/2019. The weakness was disclosed 01/30/2019 with Verizon (Website). The advisory is available at securityadvisories.paloaltonetworks.com. This vulnerability was named CVE-2019-1565 since 12/06/2018. The attack can be initiated remotely. A single authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13410 (Palo Alto Networks PAN-OS Cross-Site Scripting Vulnerability(PAN-SA-2019-0001,PAN-SA-2019-0002)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106752†). The entry VDB-130343 is pretty similar.

Productinfo

Type

• Firewall Software

Vendor

• Palo Alto

Name

• PAN-OS

Version

• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4
• 7.1.5
• 7.1.6
• 7.1.7
• 7.1.8
• 7.1.9
• 7.1.10
• 7.1.11
• 7.1.12
• 7.1.13
• 7.1.14
• 7.1.15
• 7.1.16
• 7.1.17
• 7.1.18
• 7.1.19
• 7.1.20
• 7.1.21
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.0.6
• 8.0.7
• 8.0.8
• 8.0.9
• 8.0.10
• 8.0.11
• 8.0.12
• 8.0.13
• 8.0.14
• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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