CVE-2021-1408 : Security Advisory and Response

Cisco Unified Communications Products Cross-Site Scripting Vulnerabilities were identified in the web-based management interface of Cisco Unified Communications Manager, IM & Presence Service, Session Management Edition, and Unity Connection. These vulnerabilities could be exploited by an unauthenticated, remote attacker to launch a cross-site scripting attack.

Understanding CVE-2021-1408

This CVE discloses multiple vulnerabilities in Cisco's Unified Communications products, enabling a potential attacker to execute malicious scripts through a crafted link.

What is CVE-2021-1408?

The CVE-2021-1408 exposes vulnerabilities in Cisco's Unified Communications products, allowing attackers to leverage an XSS attack to execute arbitrary script code in the affected interface.

The Impact of CVE-2021-1408

If successfully exploited, CVE-2021-1408 could enable unauthorized access to sensitive browser-based information and execution of harmful script code within the affected interface.

Technical Details of CVE-2021-1408

The base score of this vulnerability is 6.1, categorizing it as a Medium severity issue with low confidentiality and integrity impact. The attack complexity is rated as low, requiring no special privileges, but user interaction is necessary for exploitation.

Vulnerability Description

The vulnerabilities stem from inadequate validation of user input in the web-based management interface, potentially allowing attackers to execute XSS attacks.

Affected Systems and Versions

The affected products include Cisco Unity Connection with the version marked as n/a.

Exploitation Mechanism

By enticing an interface user to click on a specially crafted link, an attacker could successfully exploit these vulnerabilities.

Mitigation and Prevention

To safeguard against CVE-2021-1408, immediate steps should be taken to protect the affected systems and ensure long-term security practices are implemented.

Immediate Steps to Take

Ensure all users are cautious of clicking on unidentified or suspicious links to mitigate the risk of falling victim to XSS attacks.

Long-Term Security Practices

Regular security training and awareness programs should be conducted to educate users on safe browsing practices and the dangers of clicking on unverified links.

Patching and Updates

Stay updated on security advisories from Cisco and promptly apply any patches or updates to address known vulnerabilities.