CVE-2019-1856 Explained : Impact and Mitigation

Cisco Prime Collaboration Assurance (PCA) has a cross-site scripting vulnerability that could allow unauthorized remote attackers to execute arbitrary script code or access sensitive information.

Understanding CVE-2019-1856

Cisco Prime Collaboration Assurance (PCA) is affected by a security weakness in its web-based management interface, potentially enabling a cross-site scripting (XSS) attack.

What is CVE-2019-1856?

The vulnerability in Cisco Prime Collaboration Assurance (PCA) allows attackers to manipulate data in specific fields of integrated devices, leading to the execution of arbitrary script code or access to sensitive information.

The Impact of CVE-2019-1856

If successfully exploited, attackers can execute arbitrary script code within the PCA web-based management interface or gain access to sensitive information displayed by the user's browser.

Technical Details of CVE-2019-1856

Cisco Prime Collaboration Assurance (PCA) is affected by a cross-site scripting vulnerability that could be exploited by unauthorized remote attackers.

Vulnerability Description

The vulnerability arises from inadequate validation of data received from external devices by the web-based management interface of the affected PCA device.

Affected Systems and Versions

Product: Cisco Prime Collaboration Assurance
Vendor: Cisco
Version: 12.1

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Changed
CVSS Base Score: 6.1 (Medium Severity)

Mitigation and Prevention

Immediate Steps to Take:

Apply the latest security patches provided by Cisco.
Monitor Cisco's security advisories for any updates related to this vulnerability. Long-Term Security Practices:
Regularly update and patch all software and firmware to prevent security vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.
Educate users on safe browsing practices and the risks of clicking on suspicious links.
Consider implementing web application firewalls to detect and block XSS attacks.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Stay informed about emerging threats and security best practices.
Consider implementing security monitoring and incident response procedures.

Patching and Updates

Cisco has released patches to address the cross-site scripting vulnerability in Cisco Prime Collaboration Assurance. It is crucial to apply these patches promptly to mitigate the risk of exploitation.