Compliance Impact

This vulnerability impacts the confidentiality of the device by allowing a high privileged remote attacker to brute-force OS passwords due to weak password hashing. Such unauthorized access to sensitive data could lead to non-compliance with standards and regulations like GDPR and HIPAA, which require protection of sensitive information. Therefore, the vulnerability poses a risk to compliance by potentially exposing confidential data. [1]

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Executive Summary

This vulnerability allows a high privileged remote attacker who already has admin privileges for the web user interface (webUI) to brute-force the 'root' and 'user' passwords of the underlying operating system. This is possible because the system uses a weak password generation algorithm, making it easier to guess or crack these passwords.

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Impact Analysis

The vulnerability can lead to unauthorized access to the underlying operating system by allowing an attacker to brute-force critical user passwords. This can compromise system security, potentially allowing the attacker to gain control over the system at the OS level, which can lead to data breaches or further exploitation.

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Detection Guidance

Detection can involve checking if devices in your network are running Phoenix Contact FL SWITCH 2xxx series firmware versions prior to 3.50, as these are vulnerable. Since the vulnerability involves weak password hashing allowing brute-force attacks on 'root' and 'user' OS passwords via the webUI, monitoring for repeated failed login attempts or unusual authentication patterns on the webUI could indicate exploitation attempts. Specific commands are not provided in the resources. [1]

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Mitigation Strategies

The immediate mitigation step is to update the firmware of affected Phoenix Contact FL SWITCH 2xxx devices to version 3.50 or later, where this vulnerability has been resolved. Additionally, monitoring and restricting access to the webUI and enforcing strong password policies can help reduce risk. [1]

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