CVE-2020-3149 : Exploit Details and Defense Strategies

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack.

Understanding CVE-2020-3149

Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability

What is CVE-2020-3149?

The vulnerability in Cisco ISE Software allows an authenticated remote attacker to execute a stored XSS attack via the web-based management interface.
Insufficient input validation in the interface enables the attacker to inject malicious data, potentially leading to arbitrary script code execution.

The Impact of CVE-2020-3149

Base CVSS Score: 4.8 (Medium Severity)
Attack Vector: Network
Privileges Required: High
User Interaction: Required
Successful exploitation could allow access to sensitive information or execution of arbitrary code.

Technical Details of CVE-2020-3149

Vulnerability Description

Stored cross-site scripting (XSS) vulnerability in Cisco ISE Software's web-based management interface.

Affected Systems and Versions

Product: Cisco Identity Services Engine Software
Vendor: Cisco
Versions Affected: < 2.7.0

Exploitation Mechanism

Attacker exploits insufficient input validation in the web-based management interface by injecting malicious data.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to Cisco ISE Software version 2.7.0 or later that contains a fix for the vulnerability.
Monitor Cisco's security advisories for any updates or patches.

Long-Term Security Practices

Regularly update and patch software to mitigate potential vulnerabilities.
Implement network security measures to detect and prevent XSS attacks.
Educate users on safe browsing practices to minimize the risk of XSS exploits.

Patching and Updates

Apply security patches provided by Cisco promptly to address known vulnerabilities.