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Palo Alto Networks PAN-OS 7.1.x < 8.1.17 / 8.x < 8.1.17 / 9.0.x < 9.0.11 / 9.1.x < 9.1.5 Vulnerability

medium Nessus Plugin ID 142873

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Synopsis

The remote PAN-OS host is affected by a vulnerability

Description

The version of Palo Alto Networks PAN-OS running on the remote host is 7.1.x prior to 8.1.17 or 8.0.x prior to 8.1.17 or 8.1.x prior to 8.1.17 or 9.0.x prior to 9.0.11 or 9.1.x prior to 9.1.5. It is, therefore, affected by a vulnerability.

 - A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0. (CVE-2020-1999)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to PAN-OS 8.1.17 / 8.1.17 / 8.1.17 / 9.0.11 / 9.1.5 or later

See Also

https://security.paloaltonetworks.com/CVE-2020-1999

https://cwe.mitre.org/data/definitions/754.html

Plugin Details

Severity: Medium

ID: 142873

File Name: palo_alto_CVE-2020-1999.nasl

Version: 1.4

Type: combined

Published: 11/13/2020

Updated: 2/19/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2020-1999

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:paloaltonetworks:pan-os

Required KB Items: Host/Palo_Alto/Firewall/Version, Host/Palo_Alto/Firewall/Full_Version, Host/Palo_Alto/Firewall/Source

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2020

Vulnerability Publication Date: 11/11/2020

Reference Information

CVE: CVE-2020-1999

CWE: 754

IAVA: 2020-A-0522-S