CVE-2021-3054

Summary

A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.

Affected Software

VendorProductVersion RangeStatus
Palo Alto NetworksPAN-OS8.1 < 8.1.20affected
Palo Alto NetworksPAN-OS9.0 < 9.0.14affected
Palo Alto NetworksPAN-OS10.0 < 10.0.7affected
Palo Alto NetworksPAN-OS9.1 < 9.1.11affected
Palo Alto NetworksPAN-OS10.1 < 10.1.2affected

Weaknesses

  • CWE-367: CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Workarounds

This issue requires the attacker to have authenticated access to the PAN-OS web interface. You can mitigate the impact of this issue by following best practices for securing the PAN-OS web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation at https://docs.paloaltonetworks.com/best-practices.

ADP Enrichment

CVE Program Container

Additional References

References