CVE-2020-2000 PAN-OS: OS command injection and memory corruption vulnerability
Description
An OS command injection and memory corruption vulnerability in the PAN-OS management web interface that allows authenticated administrators to disrupt system processes and potentially execute arbitrary code and OS commands with root privileges.
This issue impacts:
PAN-OS 8.1 versions earlier than PAN-OS 8.1.16;
PAN-OS 9.0 versions earlier than PAN-OS 9.0.10;
PAN-OS 9.1 versions earlier than PAN-OS 9.1.4;
PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| PAN-OS 10.0 | < 10.0.1 | >= 10.0.1 |
| PAN-OS 9.1 | < 9.1.4 | >= 9.1.4 |
| PAN-OS 9.0 | < 9.0.10 | >= 9.0.10 |
| PAN-OS 8.1 | < 8.1.16 | >= 8.1.16 |
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 exploitation of this issue.
Weakness Type
CWE-20 Improper Input Validation
CWE-121 Stack-based Buffer Overflow
Solution
This issue is fixed in PAN-OS 8.1.16, PAN-OS 9.0.10, PAN-OS 9.1.4, PAN-OS 10.0.1, and all later PAN-OS versions.
Workarounds and Mitigations
Until PAN-OS software is upgraded to a fixed version, enabling signatures for Unique Threat ID 59888, and 59891 on a firewall protecting the management interface will block attacks against CVE-2020-2000.
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 interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.