CVE-2020-1999

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

12/11/2020

Last modified:

16/11/2020

Description

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:paloaltonetworks:pan-os::::::::	7.1.0 (including)	7.1.26 (including)
cpe:2.3:o:paloaltonetworks:pan-os::::::::	8.0.0 (including)	8.0.20 (including)
cpe:2.3:o:paloaltonetworks:pan-os::::::::	8.1.0 (including)	8.1.17 (excluding)
cpe:2.3:o:paloaltonetworks:pan-os::::::::	9.0.0 (including)	9.0.11 (excluding)
cpe:2.3:o:paloaltonetworks:pan-os::::::::	9.1.0 (including)	9.1.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

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