CVE-2023-20195 : What You Need to Know

This CVE involves two vulnerabilities in Cisco ISE that could be exploited by an authenticated, remote attacker to upload arbitrary files to the affected device. To carry out the attack, the attacker needs valid Administrator credentials on the impacted device.

Understanding CVE-2023-20195

This section delves deeper into the nature of the vulnerabilities and their potential impact.

What is CVE-2023-20195?

The vulnerabilities stem from inadequate validation of files uploaded to the web-based management interface of Cisco ISE. An attacker could leverage this flaw by uploading a specially crafted file to the device, potentially leading to the storage of malicious files within specific directories. Subsequently, the attacker could utilize these files for further attacks, including executing arbitrary code on the compromised device with root privileges.

The Impact of CVE-2023-20195

The successful exploitation of these vulnerabilities could have severe consequences, allowing threat actors to compromise the confidentiality, integrity, and availability of the affected systems. This could lead to unauthorized access, data breaches, and potential system compromise.

Technical Details of CVE-2023-20195

This section provides more detailed insights into the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The vulnerabilities in Cisco ISE are attributed to the improper validation of uploaded files on the web-based management interface, enabling attackers to upload malicious files and execute arbitrary code with elevated privileges.

Affected Systems and Versions

Multiple versions of Cisco Identity Services Engine Software ranging from 2.6.0 to 3.2.0 are impacted by these vulnerabilities, potentially exposing a wide range of users to the associated risks.

Exploitation Mechanism

Exploiting these vulnerabilities requires the attacker to possess valid Administrator credentials on the targeted device. By uploading a specifically crafted file to the affected system, the attacker can store malicious content in designated directories, facilitating further malicious activities.

Mitigation and Prevention

This section outlines the steps that organizations and users can take to mitigate the risks posed by CVE-2023-20195 and prevent potential exploitation.

Immediate Steps to Take

Organizations are advised to apply security best practices, limit user privileges, monitor file uploads carefully, and deploy robust security solutions to detect and prevent unauthorized activities.

Long-Term Security Practices

Regular security assessments, employee training on cybersecurity best practices, and prompt security updates can help bolster the overall security posture of organizations and enhance resilience against emerging threats.

Patching and Updates

Cisco has likely released patches or updates to address these vulnerabilities. It is crucial for organizations using affected Cisco ISE software versions to promptly apply these patches to eliminate the associated security risks and fortify their defenses against potential attacks.