CVE-2023-6790 : What You Need to Know

This CVE record pertains to a DOM-Based Cross-Site Scripting (XSS) vulnerability found in Palo Alto Networks PAN-OS software. The vulnerability allows a remote attacker to execute a JavaScript payload within an administrator's browser by manipulating a specific link to the PAN-OS web interface.

Understanding CVE-2023-6790

This section will delve into the details of the CVE-2023-6790 vulnerability, its impact, technical specifics, and mitigation strategies.

What is CVE-2023-6790?

CVE-2023-6790 is a DOM-Based Cross-Site Scripting (XSS) vulnerability present in Palo Alto Networks PAN-OS software. It enables malicious actors to inject and execute a JavaScript payload in the context of a system administrator's browser by exploiting a crafted link in the PAN-OS web interface.

The Impact of CVE-2023-6790

The vulnerability poses a high risk as it allows remote attackers to compromise the confidentiality, integrity, and availability of PAN-OS systems. With successful exploitation, sensitive information could be exposed, and malicious actions could be carried out within the affected system.

Technical Details of CVE-2023-6790

In this section, we will explore the specific technical aspects of CVE-2023-6790, including the vulnerability description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper input neutralization during web page generation (CWE-79), commonly known as Cross-Site Scripting (XSS). It enables threat actors to inject and execute malicious scripts within the PAN-OS web interface.

Affected Systems and Versions

Palo Alto Networks PAN-OS versions up to specific releases are impacted by the CVE. Versions affected include PAN-OS 8.1, 9.0, 9.1, 10.0, 10.1, 10.2, and 11.0, addressing which is crucial to mitigate the risk posed by the XSS vulnerability.

Exploitation Mechanism

Exploiting CVE-2023-6790 involves creating and distributing a carefully crafted link that triggers the execution of JavaScript code in the target system's browser. This manipulation allows attackers to carry out various malicious activities within the PAN-OS web interface.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2023-6790, immediate actions, long-term security practices, and patching measures are essential.

Immediate Steps to Take

Organizations should update their PAN-OS software to the patched versions (8.1.25, 9.0.17, 9.1.16, 10.0.12, 10.1.9, 10.2.4, 11.0.1, or later) to mitigate the XSS vulnerability. Additionally, administrators should raise awareness among users to avoid clicking on suspicious links.

Long-Term Security Practices

Incorporating secure coding practices, conducting regular security audits, and keeping systems updated with the latest patches and security releases can help prevent similar vulnerabilities in the future.

Patching and Updates

Palo Alto Networks has addressed the CVE-2023-6790 vulnerability in the latest PAN-OS versions. It is recommended that organizations promptly apply the available patches to ensure the security of their PAN-OS deployments and prevent potential malicious exploitation.