CVE-2019-1722 : Vulnerability Insights and Analysis

A vulnerability in the FindMe feature of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack and perform arbitrary actions on an affected system. The flaw was discovered on April 17, 2019, and has a CVSS base score of 6.5.

Understanding CVE-2019-1722

This CVE describes a CSRF vulnerability in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) that could be exploited by an unauthorized individual to execute unauthorized actions on the affected system.

What is CVE-2019-1722?

The vulnerability arises from insufficient CSRF protections in the web-based management interface of the affected system. An attacker could manipulate a user into accessing a malicious link, enabling them to perform unauthorized actions on the system.

The Impact of CVE-2019-1722

The vulnerability allows attackers to carry out CSRF attacks, potentially leading to unauthorized actions such as adding attacker-controlled devices and redirecting calls intended for specific users.

Technical Details of CVE-2019-1722

The vulnerability details and affected systems are outlined below:

Vulnerability Description

Type: Cross-Site Request Forgery (CSRF)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Integrity Impact: High

Affected Systems and Versions

Product: Cisco TelePresence Video Communication Server (VCS)
Vendor: Cisco
Versions Affected: < X12.5.1

Exploitation Mechanism

The attacker needs to persuade a user to click on a malicious link, exploiting the lack of CSRF safeguards in the web-based management interface to perform unauthorized actions.

Mitigation and Prevention

To address CVE-2019-1722, consider the following steps:

Immediate Steps to Take

Update to software version X12.5.1 or newer to mitigate the vulnerability.
Educate users about the risks of clicking on unknown or suspicious links.

Long-Term Security Practices

Implement CSRF protections in web applications to prevent such attacks.
Regularly monitor and audit web-based management interfaces for vulnerabilities.

Patching and Updates

Apply security patches and updates provided by Cisco to ensure system security.