CVE-2019-1917 : Vulnerability Insights and Analysis

Cisco Vision Dynamic Signage Director REST API Authentication Bypass Vulnerability

Understanding CVE-2019-1917

A security flaw in the REST API interface of Cisco Vision Dynamic Signage Director allows unauthenticated remote attackers to bypass authentication, potentially gaining administrative privileges.

What is CVE-2019-1917?

The vulnerability arises from inadequate validation of HTTP requests, enabling attackers to send manipulated requests to affected systems, granting unauthorized access through the REST API.

The Impact of CVE-2019-1917

The flaw poses a critical threat with a CVSS base score of 9.1, allowing attackers to execute unauthorized actions with high confidentiality and integrity impact.

Technical Details of CVE-2019-1917

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Lack of proper validation of HTTP requests in the REST API interface

Affected Systems and Versions

Product: Cisco Vision Dynamic Signage Director
Vendor: Cisco
Versions Affected: < 6.1sp3

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
User Interaction: None
Scope: Unchanged
Exploitation Impact: High confidentiality and integrity impact

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2019-1917:

Immediate Steps to Take

Apply vendor-provided patches or updates
Monitor network traffic for any suspicious activity
Implement strong authentication mechanisms

Long-Term Security Practices

Regularly update and patch software and systems
Conduct security assessments and audits periodically
Educate users on secure practices and awareness

Patching and Updates

Cisco may release patches or updates to address the vulnerability
Stay informed through vendor advisories and security sources