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

8.1HIGH

Key Information:

Vendor

Palo Alto Networks
Status
Pan-os
Prisma Access
Vendor
CVE Published:
10 November 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 39%

What is CVE-2021-3060?

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.

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Deploy the Patch

Affected Version(s)

PAN-OS 8.1 < 8.1.20-h1

PAN-OS 9.0 < 9.0.14-h3

PAN-OS 9.1 < 9.1.11-h2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

rqu1-cve-2021-3060.py
Created by timb-machine-mirrors

CVE-2021-3060
Created by anmolksachan

References

https://security.paloaltonetworks.com/CVE-2021-3060
x_refsource_MISC
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admi...
x_refsource_MISC
https://docs.paloaltonetworks.com/prisma/prisma-access/in...
x_refsource_MISC

EPSS Score

39% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Palo Alto Networks thanks CJ, an external security researcher, for discovering and reporting this issue.
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