Server-Side Request Forgery in ptbsare anx-calibre-manager

Executive Summary

This vulnerability is a server-side request forgery (SSRF) flaw in the ptbsare anx-calibre-manager software up to version 1.13.12. It exists in the LLMClient.chat function of the file blueprints/api/llm.py, specifically in the LLM Configuration Handler component. The issue arises when the base_url argument is manipulated, allowing an attacker to make unauthorized server-side requests remotely.

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Detection Guidance

This vulnerability involves server-side request forgery in the LLM Configuration Handler component of ptbsare anx-calibre-manager. To detect it, monitor network traffic for unusual outbound requests from the application, especially those targeting internal or external systems not expected in normal operations. Check logs for anomalies in the base_url parameter handling in the llm.py file.

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Impact Analysis

An attacker could exploit this vulnerability to send crafted requests to internal systems or services from the vulnerable server. This may lead to unauthorized access to sensitive data, internal network reconnaissance, or further attacks against other systems within the same network. The exploit has been publicly disclosed and may already be in use.

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Compliance Impact

The vulnerability allows server-side request forgery via manipulation of the base_url argument in the LLM Configuration Handler. This could enable unauthorized access to internal systems or data exfiltration, which may violate data protection requirements under GDPR (e.g., unauthorized data access) and HIPAA (e.g., unauthorized disclosure of protected health information).

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Mitigation Strategies

Update ptbsare anx-calibre-manager to the latest version beyond 1.13.12 to address the server-side request forgery flaw in the LLM Configuration Handler.

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