CVE-2019-1843 : Security Advisory and Response

Cisco RV110W, RV130W, and RV215W Routers Management Interface Denial of Service Vulnerability

Understanding CVE-2019-1843

This CVE involves a vulnerability in the web-based management interface of Cisco RV series routers, potentially leading to a denial of service (DoS) attack.

What is CVE-2019-1843?

The vulnerability in the web-based management interface of Cisco RV series routers allows an unauthenticated remote attacker to cause a device reload, resulting in a DoS situation due to improper validation of user-supplied data.

The Impact of CVE-2019-1843

CVSS Base Score: 8.6 (High)
Attack Vector: Network
Availability Impact: High
The vulnerability could be exploited by sending malicious HTTP requests, causing the device to reload and leading to a DoS condition.

Technical Details of CVE-2019-1843

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Improper validation of user-supplied data in the web-based management interface

Affected Systems and Versions

Affected Product: Cisco RV130W Wireless-N Multifunction VPN Router Firmware
Vendor: Cisco
Affected Version: Less than 1.2.2.4

Exploitation Mechanism

Attacker sends malicious HTTP requests to the targeted device
Successful exploitation results in device reload and DoS condition

Mitigation and Prevention

Steps to address and prevent the CVE-2019-1843 vulnerability:

Immediate Steps to Take

Apply vendor-provided patches or updates
Implement network security best practices

Long-Term Security Practices

Regularly monitor and update network devices
Conduct security assessments and audits

Patching and Updates

Regularly check for firmware updates from Cisco
Apply patches promptly to mitigate the vulnerability