Home/CVE/A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enab
CVE

CVE-2021-3054

A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enab

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.

HIGH · CVSS 7.2 EPSS 0.00641
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

5
paloaltonetworks pan-os>= 8.1.0 and < 8.1.20
paloaltonetworks pan-os>= 9.0.0 and < 9.0.14
paloaltonetworks pan-os>= 9.1.0 and < 9.1.11
paloaltonetworks pan-os>= 10.0.0 and < 10.0.7
paloaltonetworks pan-os>= 10.1.0 and < 10.1.2
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · psirt@paloaltonetworks.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Sep 2021 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.paloaltonetworks.com/CVE-2021-3054Vendor Advisory
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