Remote Credential Harvesting in IBM i Navigator for i

Executive Summary

IBM i versions 7.6, 7.5, 7.4, and 7.3 are vulnerable to a remote unauthenticated attacker harvesting credentials due to spoofing of Navigator for i. This allows an attacker to trick users into revealing their login details.

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Detection Guidance

This vulnerability involves spoofing in IBM Navigator for i, which could allow credential harvesting. Detection would require monitoring network traffic for unusual Navigator for i connections or authentication attempts. Check logs for repeated failed login attempts or unexpected access patterns. Use network scanning tools to identify unpatched IBM i systems exposing Navigator for i endpoints.

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Impact Analysis

An attacker could gain access to sensitive systems or data by tricking users into entering credentials on a spoofed interface. This may lead to unauthorized access, data breaches, or further exploitation of the system.

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Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Organizations may face compliance violations and penalties.

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Mitigation Strategies

Apply IBM i PTFs or updates to address the spoofing issue in Navigator for i. Monitor IBM security advisories for patches. Restrict access to Navigator for i if possible until patched.

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