Palo Alto Networks Security Advisories / CVE-2020-1990

CVE-2020-1990 PAN-OS: Buffer overflow in the management server

047910
Severity 7.2 · HIGH
Attack Vector NETWORK
Attack Complexity LOW
Privileges Required HIGH
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH

Description

A stack-based buffer overflow vulnerability in the management server component of PAN-OS allows an authenticated user to upload a corrupted PAN-OS configuration and potentially execute code with root privileges.

This issue affects Palo Alto Networks PAN-OS 8.1 versions before 8.1.13; 9.0 versions before 9.0.7.

This issue does not affect PAN-OS 7.1.

Product Status

PAN-OS

VersionsAffectedUnaffected
9.0< 9.0.7>= 9.0.7
8.1< 8.1.13>= 8.1.13
7.17.1.*

Severity: HIGH

CVSSv3.1 Base Score: 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

Weakness Type

CWE-121 Stack-based Buffer Overflow

Solution

This issue is fixed in PAN-OS 8.1.13, PAN-OS 9.0.7 and all later versions.

Workarounds and Mitigations

These issues affect the management interface of PAN-OS and are strongly mitigated by following best practices for securing the PAN-OS management interface. Our best practices guidelines reduce the exposure of the management interface to potential attackers. Please review the Best Practices for Securing Administrative Access in the PAN-OS 9.0 technical documentation, available at: https://docs.paloaltonetworks.com/pan-os/9-0/pan-os-admin/getting-started/best-practices-for-securing-administrative-access.html.

Acknowledgments

This issue was discovered by Nicholas Newsom of Palo Alto Networks during internal security review.

Timeline

Initial publication
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