CVE-2020-1992

08.04.2020, 19:15

A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
palo_alto	CNA	8.1 HIGH	NETWORK	HIGH	NONE	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 82%

Vendor	Product	Version
paloaltonetworks	pan-os	9.0.0 ≤ 𝑥 < 9.0.7
paloaltonetworks	pan-os	9.1.0 ≤ 𝑥 < 9.1.2

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-134 - Use of Externally-Controlled Format String
The software uses a function that accepts a format string as an argument, but the format string originates from an external source.

References

https://security.paloaltonetworks.com/CVE-2020-1992