Executive Summary

This vulnerability is an improper restriction of excessive authentication attempts in the web management interface of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0.

It allows an adjacent attacker on the local area network (LAN) to perform brute-force attacks on the password, potentially bypassing authentication.

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Impact Analysis

An attacker who is on the same LAN as the vulnerable device could exploit this vulnerability to gain unauthorized access to the device's web management interface.

This could lead to a compromise of the device's configuration and security settings.

According to the CVSS score of 6.5, the impact includes high confidentiality impact but no impact on integrity or availability.

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Mitigation Strategies

The vulnerability affects Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 and allows an adjacent attacker on the LAN to brute-force the password and bypass authentication.

Since the provided resources do not include specific mitigation steps or patches for this vulnerability, the best immediate action is to consider upgrading to a newer, supported product or firmware version, as Zyxel advises migrating to newer solutions to maintain security and performance.

Additionally, restricting LAN access to the web management interface and monitoring for unusual authentication attempts may help reduce risk until a proper fix or update is applied.

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Compliance Impact

The vulnerability allows an adjacent attacker on the LAN to brute-force the password and bypass authentication on the Zyxel WRE6505 v2 web management interface. This could lead to unauthorized access to the device, potentially exposing sensitive data or network controls.

Such unauthorized access could impact compliance with standards and regulations like GDPR and HIPAA, which require protection of personal and sensitive data through strong access controls and authentication mechanisms.

However, no specific information is provided in the available resources about direct compliance implications or mitigation steps related to this vulnerability.

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