CVE-2020-2027

PAN-OS: Buffer overflow in authd authentication response

Description

A buffer overflow vulnerability in the authd component of the PAN-OS management server allows authenticated administrators to disrupt system processes and potentially execute arbitrary code with root privileges. This issue affects: All versions of PAN-OS 7.1 and PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.13; PAN-OS 9.0 versions earlier than PAN-OS 9.0.7.

Remediation

Solution:

  • This issue is fixed in PAN-OS 8.1.13, PAN-OS 9.0.7, PAN-OS 9.1.0, and all later PAN-OS versions.
  • PAN-OS 8.0 is end-of-life (as of October 31, 2019) and is no longer covered by our Product Security Assurance policies. PAN-OS 7.1 is on extended support until June 30, 2020, and is only being considered for critical security vulnerability fixes.

Workaround:

  • This issue affects the management interface of PAN-OS and you can mitigate the impact of this issue by following best practices for securing the PAN-OS management interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.

Categories

7.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.40% Top 20%
Vendor Advisory paloaltonetworks.com
Affected: Palo Alto Networks PAN-OS
Published at:
Updated at:

References

Link Tags
https://security.paloaltonetworks.com/CVE-2020-2027 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-2027?
CVE-2020-2027 has been scored as a high severity vulnerability.
How to fix CVE-2020-2027?
To fix CVE-2020-2027: This issue is fixed in PAN-OS 8.1.13, PAN-OS 9.0.7, PAN-OS 9.1.0, and all later PAN-OS versions.
Is CVE-2020-2027 being actively exploited in the wild?
It is possible that CVE-2020-2027 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-2027?
CVE-2020-2027 affects Palo Alto Networks PAN-OS.
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