CVE-2020-3551 Explained : Impact and Mitigation

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

Understanding CVE-2020-3551

This CVE involves a security flaw in Cisco Identity Services Engine (ISE) that could be exploited by a remote attacker to execute arbitrary script code.

What is CVE-2020-3551?

The vulnerability in the web-based management interface of Cisco ISE allows attackers to perform a cross-site scripting attack by manipulating user input without proper validation.

The Impact of CVE-2020-3551

If successfully exploited, an attacker could execute malicious scripts within the affected interface or access sensitive browser-based information.

Technical Details of CVE-2020-3551

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises due to inadequate validation of user-supplied input in the web-based management interface of Cisco ISE, enabling attackers to execute a cross-site scripting attack.

Affected Systems and Versions

Product: Cisco Identity Services Engine Software
Vendor: Cisco
Affected Version: Not Applicable

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Changed
CVSS Score: 6.1 (Medium Severity)
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Mitigation and Prevention

Protecting systems from CVE-2020-3551 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Educate users about the risks of clicking on suspicious links.

Long-Term Security Practices

Regularly monitor and update security configurations.
Conduct security training for employees to enhance awareness.

Patching and Updates

Ensure that the latest security patches and updates are installed to mitigate the vulnerability effectively.