CVE-2019-5986 Explained : Impact and Mitigation

A vulnerability known as cross-site request forgery (CSRF) has been discovered in the Hikari Denwa router/Home GateWay devices provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION. This vulnerability affects multiple firmware versions.

Understanding CVE-2019-5986

This CVE involves a CSRF vulnerability in Hikari Denwa router/Home GateWay devices provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION and WEST CORPORATION.

What is CVE-2019-5986?

CVE-2019-5986 is a CSRF vulnerability found in Hikari Denwa router/Home GateWay devices, allowing remote attackers to manipulate the authentication process of administrators.

The Impact of CVE-2019-5986

The vulnerability can be exploited by remote attackers to hijack the authentication of administrators through unspecified means.

Technical Details of CVE-2019-5986

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The CSRF vulnerability affects various firmware versions of Hikari Denwa router/Home GateWay devices provided by NIPPON TELEGRAPH AND TELEPHONE EAST and WEST CORPORATION.

Affected Systems and Versions

PR-S300NE/RT-S300NE/RV-S340NE firmware version Ver. 19.41 and earlier
PR-S300HI/RT-S300HI/RV-S340HI firmware version Ver.19.01.0005 and earlier
PR-S300SE/RT-S300SE/RV-S340SE firmware version Ver.19.40 and earlier
PR-400NE/RT-400NE/RV-440NE firmware version Ver.7.42 and earlier
PR-400KI/RT-400KI/RV-440KI firmware version Ver.07.00.1010 and earlier
PR-400MI/RT-400MI/RV-440MI firmware version Ver. 07.00.1012 and earlier
PR-500KI/RT-500KI firmware version Ver.01.00.0090 and earlier
RS-500KI firmware version Ver.01.00.0070 and earlier
PR-500MI/RT-500MI firmware version Ver.01.01.0014 and earlier
RS-500MI firmware version Ver.03.01.0019 and earlier
PR-500MI/RT-500MI firmware version Ver.01.01.0011 and earlier

Exploitation Mechanism

The vulnerability allows remote attackers to hijack the authentication of administrators through unspecified vectors.

Mitigation and Prevention

Protect your systems from CVE-2019-5986 with the following steps:

Immediate Steps to Take

Update the firmware to the latest version provided by the respective vendors.
Implement strong authentication mechanisms.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security audits and assessments periodically.
Educate administrators and users on cybersecurity best practices.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of CSRF vulnerabilities.