CVE-2019-19822 : Vulnerability Insights and Analysis

A vulnerability in a specific administrative interface for routers allows remote attackers to access sensitive information such as usernames and passwords.

Understanding CVE-2019-19822

This CVE identifies a security flaw in certain router models that could lead to unauthorized access to confidential data.

What is CVE-2019-19822?

The vulnerability in the administrative interface of routers enables remote attackers to retrieve sensitive information, compromising user credentials.

The Impact of CVE-2019-19822

The vulnerability poses a significant risk as it allows unauthorized access to router configurations, potentially exposing usernames and passwords to malicious actors.

Technical Details of CVE-2019-19822

This section delves into the technical aspects of the CVE.

Vulnerability Description

The flaw in the administrative interface of routers, including Realtek APMIB 0.11f for Boa 0.94.14rc21, permits remote attackers to obtain configuration data, including usernames and passwords.

Affected Systems and Versions

The following router models are impacted by this vulnerability:

TOTOLINK A3002RU up to version 2.0.0
A702R up to version 2.1.3
N301RT up to version 2.1.6
N302R up to version 3.4.0
N300RT up to version 3.4.0
N200RE up to version 4.0.0
N150RT up to version 3.4.0
N100RE up to version 3.4.0
Rutek RTK 11N AP up to version 2019-12-12
Sapido GR297n up to version 2019-12-12
CIK TELECOM MESH ROUTER up to version 2019-12-12
KCTVJEJU Wireless AP up to version 2019-12-12
Fibergate FGN-R2 up to version 2019-12-12
Hi-Wifi MAX-C300N up to version 2019-12-12
HCN MAX-C300N up to version 2019-12-12
T-broad GN-866ac up to version 2019-12-12
Coship EMTA AP up to version 2019-12-12
IO-Data WN-AC1167R up to version 2019-12-12

Exploitation Mechanism

The vulnerability allows attackers to exploit the router's administrative interface to gain unauthorized access to sensitive data, potentially leading to unauthorized system control.

Mitigation and Prevention

Protecting against this vulnerability requires immediate action and long-term security measures.

Immediate Steps to Take

Update router firmware to the latest version provided by the manufacturer.
Change default usernames and passwords to strong, unique credentials.
Implement network segmentation to restrict access to sensitive areas.

Long-Term Security Practices

Regularly monitor network traffic for any suspicious activity.
Conduct security audits and penetration testing to identify and address vulnerabilities.
Educate users on best practices for securing their network devices.

Patching and Updates

Regularly check for firmware updates and security patches from the router manufacturer to address known vulnerabilities.