CVE-2021-3058

PAN-OS: OS Command Injection Vulnerability in Web Interface XML API

Description

An OS command injection vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permissions to use XML API the ability 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. This issue does not impact Prisma Access firewalls.

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.

Workaround:

  • Enable signatures for Unique Threat ID 91715 on traffic processed by the firewall to block attacks against CVE-2021-3058. 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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.04% 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-2021-3058 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3058?
CVE-2021-3058 has been scored as a high severity vulnerability.
How to fix CVE-2021-3058?
To fix CVE-2021-3058: 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-2021-3058 being actively exploited in the wild?
It is possible that CVE-2021-3058 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-2021-3058?
CVE-2021-3058 affects Palo Alto Networks PAN-OS, Palo Alto Networks Prisma Access.
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