Palo Alto Networks PAN-OS 8.1.x < 8.1.0 / 9.0.x < 9.0.0 / 9.1.x < 9.1.0 Vulnerability

low Nessus Plugin ID 155598

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 8.1.x prior to 8.1.0 or 9.0.x prior to 9.0.0 or 9.1.x prior to 9.1.0. It is, therefore, affected by a vulnerability.

- In versions of Palo Alto Networks PAN-OS software earlier than PAN-OS 10.0, the DHE cipher available for use in traffic decryption improperly shares a cryptographic secret across multiple TLS connections, which weakens its cryptographic strength. This is a prerequisite for successful exploitation of the Raccoon attack (CVE-2020-1968), which allows an attacker to eavesdrop on encrypted traffic over those TLS connections. (CVE-2020-1968)

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 8.1.0 / 9.0.0 / 9.1.0 or later

See Also

https://security.paloaltonetworks.com/CVE-2020-1968

https://nvd.nist.gov/vuln/detail/CVE-2020-1968

https://cwe.mitre.org/data/definitions/203.html

https://cwe.mitre.org/data/definitions/326.html

Plugin Details

Severity: Low

ID: 155598

File Name: palo_alto_CVE-2020-1968.nasl

Version: 1.2

Type: combined

Published: 11/18/2021

Updated: 11/18/2021

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2020-1968

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

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

Temporal Vector: 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, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 10/13/2021

Vulnerability Publication Date: 9/9/2020

Reference Information

CVE: CVE-2020-1968

IAVA: 2020-A-0186-S

CWE: 203, 326