Palo Alto Networks Security Advisories / CVE-2020-2042

CVE-2020-2042 PAN-OS: Buffer overflow in the management web interface

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 buffer overflow vulnerability in the PAN-OS management web interface allows authenticated administrators to disrupt system processes and potentially execute arbitrary code with root privileges.

This issue impacts only PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

Product Status

VersionsAffectedUnaffected
PAN-OS 10.0< 10.0.1>= 10.0.1
PAN-OS 9.1None9.1.*
PAN-OS 9.0None9.0.*
PAN-OS 8.1None8.1.*

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)

Exploitation Status

Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.

Weakness Type

CWE-121 Stack-based Buffer Overflow

Solution

This issue is fixed in PAN-OS 10.0.1 and all later PAN-OS versions.

Workarounds and Mitigations

This issue impacts the PAN-OS management web interface but you can mitigate the impact of this issue by following best practices for securing the PAN-OS management web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.

Acknowledgments

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

Timeline

Initial publication
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