Attacker Value
Moderate
(1 user assessed)
Exploitability
Low
(1 user assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
1

CVE-2020-2040

Disclosure Date: September 09, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.

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1
Ratings
  • Attacker Value
    Medium
  • Exploitability
    Low
Technical Analysis

Not enough is known about this vulnerability, but if an unauthenticated attacker can knock out a PAN-OS device, that could cause severe network disruption. RCE would be even worse. Note that this affects only the Captive Portal and Multi-Factor Authentication interfaces.

CVSS V3 Severity and Metrics
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • Palo Alto Networks

Products

  • PAN-OS

Additional Info

Technical Analysis