CVE-2019-1943 : Security Advisory and Response

A weakness has been identified in the web interface of Cisco Small Business Series Switches, potentially allowing remote attackers to redirect users to deceptive webpages.

Understanding CVE-2019-1943

This CVE involves an open redirect vulnerability in Cisco Small Business Series Switches.

What is CVE-2019-1943?

The vulnerability in the web interface of Cisco Small Business Series Switches allows unauthenticated remote attackers to reroute users to harmful URLs through inadequate input validation.

The Impact of CVE-2019-1943

Attack Complexity: High
Attack Vector: Network
Base Score: 4.7 (Medium Severity)
Confidentiality and Integrity Impact: Low
User Interaction Required
Exploitation could lead to phishing attacks and redirection to malicious websites.

Technical Details of CVE-2019-1943

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from insufficient validation of input parameters in HTTP requests.

Affected Systems and Versions

Product: Cisco Small Business 300 Series Managed Switches
Vendor: Cisco
Version: 1.3.7.18

Exploitation Mechanism

Attackers intercept and modify HTTP requests to redirect users to harmful URLs.

Mitigation and Prevention

Protecting systems from CVE-2019-1943 is crucial for maintaining security.

Immediate Steps to Take

Apply vendor-released patches promptly.
Monitor network traffic for suspicious activities.
Educate users about phishing attacks and safe browsing practices.

Long-Term Security Practices

Regularly update and patch all network devices.
Implement strong access controls and authentication mechanisms.
Conduct security audits and penetration testing periodically.

Patching and Updates

Stay informed about security advisories from Cisco.
Apply security patches as soon as they are available.