CVE-2021-3059

PAN-OS: OS Command Injection Vulnerability When Performing Dynamic Updates

Description

An OS command injection vulnerability in the Palo Alto Networks PAN-OS management interface exists when performing dynamic updates. This vulnerability enables a man-in-the-middle attacker to execute arbitrary OS commands to escalate privileges. 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 that have Prisma Access 2.1 Preferred or Prisma Access 2.1 Innovation firewalls are impacted by this issue.

Remediation

Solution:

  • This issue is fixed in PAN-OS 8.1.20-h1, PAN-OS 9.0.14-h3, PAN-OS 9.1.11-h2, PAN-OS 10.0.8, PAN-OS 10.1.3, and all later PAN-OS versions.
  • This issue is fixed in Prisma Access 2.2 Preferred and all later Prisma Access versions.

Workaround:

  • You can disable scheduled dynamic updates for the firewall at 'Device Deployment > Dynamic Updates' in the web interface. Choosing not to receive dynamic updates will minimize your exposure to this vulnerability until you upgrade the PAN-OS firewall to a fixed version.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.03% Top 25%
Vendor Advisory paloaltonetworks.com
Affected: Palo Alto Networks PAN-OS
Affected: Palo Alto Networks Prisma Access
Published at:
Updated at:

References

Link Tags
https://security.paloaltonetworks.com/CVE-2021-3059 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3059?
CVE-2021-3059 has been scored as a high severity vulnerability.
How to fix CVE-2021-3059?
To fix CVE-2021-3059: This issue is fixed in PAN-OS 8.1.20-h1, PAN-OS 9.0.14-h3, PAN-OS 9.1.11-h2, PAN-OS 10.0.8, PAN-OS 10.1.3, and all later PAN-OS versions.
Is CVE-2021-3059 being actively exploited in the wild?
It is possible that CVE-2021-3059 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3059?
CVE-2021-3059 affects Palo Alto Networks PAN-OS, Palo Alto Networks Prisma Access.
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