CVE-2021-1358 : Security Advisory and Response

A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to redirect a user to an undesired web page.

Understanding CVE-2021-1358

This CVE, also known as Cisco Finesse Open Redirect Vulnerability, exposes a security flaw in the web-based interface of Cisco Finesse that could be exploited by attackers.

What is CVE-2021-1358?

The vulnerability allows an attacker to redirect users to malicious websites through improper input validation of URL parameters in HTTP requests.

The Impact of CVE-2021-1358

The vulnerability could be used in phishing attacks to deceive users into visiting harmful websites unknowingly.

Technical Details of CVE-2021-1358

The vulnerability carries a CVSS v3.1 base score of 4.7, indicating a medium severity issue.

Vulnerability Description

The flaw is caused by inadequate validation of URL parameters, enabling attackers to craft malicious URLs to redirect users.

Affected Systems and Versions

The vulnerability affects the Cisco Unified Contact Center Express product with all versions.

Exploitation Mechanism

Attackers can exploit the vulnerability by tricking users into clicking specially crafted links.

Mitigation and Prevention

Organizations can take immediate steps to mitigate the risk posed by CVE-2021-1358.

Immediate Steps to Take

Educate users about phishing attacks, avoid clicking on suspicious links, and monitor for any unusual redirects.

Long-Term Security Practices

Implementing strong authentication mechanisms, regular security training, and keeping systems updated can enhance overall security.

Patching and Updates

Apply patches and updates provided by Cisco to address the vulnerability effectively.