CVE-2019-1897 : Vulnerability Insights and Analysis

A vulnerability in the web-based management interface of Cisco RV110W, RV130W, and RV215W Routers could allow an unauthorized attacker to disconnect clients using the guest network. This flaw is due to inadequate authorization of an HTTP request, potentially leading to a denial of service for specific clients.

Understanding CVE-2019-1897

What is CVE-2019-1897?

The vulnerability in Cisco RV110W, RV130W, and RV215W Routers allows attackers to disrupt services for clients connected to the guest network by exploiting a weakness in the device disconnection URL.

The Impact of CVE-2019-1897

If successfully exploited, unauthorized attackers can disconnect clients on the guest network, causing a disruption in services for specific users.

Technical Details of CVE-2019-1897

Vulnerability Description

The flaw exists in the web-based management interface of Cisco RV110W, RV130W, and RV215W Routers
Attackers can exploit inadequate authorization of an HTTP request to disconnect clients

Affected Systems and Versions

Product: Cisco RV130W Wireless-N Multifunction VPN Router Firmware
Vendor: Cisco
Vulnerable Version: < 1.0.3.51

Exploitation Mechanism

Attackers access the device disconnection URL and provide device information to disconnect clients

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-provided patches and updates promptly
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update router firmware to address security vulnerabilities
Implement strong network access controls and authentication mechanisms

Patching and Updates

Cisco has released firmware updates to address the vulnerability