CVE-2020-1981 PAN-OS: Predictable temporary filename vulnerability allows local privilege escalation
Description
A predictable temporary filename vulnerability in PAN-OS allows local privilege escalation.
This issue allows a local attacker who bypassed the restricted shell to execute commands as a low privileged user and gain root access on the PAN-OS hardware or virtual appliance.
This issue affects only PAN-OS 8.1 versions earlier than PAN-OS 8.1.13.
This issue does not affect PAN-OS 7.1, PAN-OS 9.0, or later PAN-OS versions.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| PAN-OS 9.1 | None | >= 9.1.0 |
| PAN-OS 9.0 | None | >= 9.0.0 |
| PAN-OS 8.1 | < 8.1.13 | >= 8.1.13 |
| PAN-OS 7.1 | None | >= 7.1.0 |
Required Configuration for Exposure
N/A
Severity: HIGH
CVSSv3.1 Base Score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Weakness Type
CWE-377 Insecure Temporary File
Solution
This issue is fixed in PAN-OS 8.1.13 and all later PAN-OS 8.1 versions.
Workarounds and Mitigations
This issue affects the management interface of PAN-OS and is 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 8.1 technical documentation, available at: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-admin/getting-started/best-practices-for-securing-administrative-access.