Executive Summary

This vulnerability is a missing authentication issue in the Altium 365 SearchService. A legacy SOAP endpoint allows access to search index operations without requiring any authentication, session tokens, or identity verification.

An unauthenticated attacker who knows a target workspace's identifier can interact with that workspace's search index, crossing tenant boundaries.

Exploitation allows the attacker to read indexed contents such as component data, project and folder names, and user metadata, as well as inject, modify, or delete search index entries. These changes affect only the search index, not the underlying vault data.

This can disclose sensitive workspace information and compromise the integrity and availability of search results. The vulnerability affects Altium 365 cloud deployments but not on-premise Altium Enterprise Server.

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Impact Analysis

The vulnerability can lead to unauthorized disclosure of sensitive workspace information, including component data, project and folder names, and user metadata.

It can also compromise the integrity and availability of search results by allowing an attacker to inject, modify, or delete search index entries.

Although the underlying vault data is not affected, the manipulation of search indexes can disrupt normal operations and trust in the search functionality.

Since the vulnerability allows crossing tenant boundaries, it poses a risk to multiple users and workspaces within the Altium 365 cloud environment.

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Mitigation Strategies

The vulnerability affects Altium 365 cloud deployments due to a legacy SOAP endpoint that exposes search index operations without authentication. Immediate mitigation steps include restricting or disabling access to the legacy SOAP endpoint if possible, monitoring for unauthorized access attempts to the search service, and applying any security updates or patches provided by Altium.

Since on-premise Altium Enterprise Server is not affected, consider isolating or migrating sensitive workloads to on-premise environments if feasible until a fix is applied.

Refer to Altium's official security advisories page for the latest updates and recommended actions.

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Compliance Impact

The vulnerability allows unauthenticated attackers to access and manipulate search index data across tenant boundaries, potentially exposing sensitive workspace information such as component data, project and folder names, and user metadata.

Although the underlying vault data is not affected, the disclosure of sensitive workspace information and compromise of data integrity and availability could lead to non-compliance with data protection regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access.

Therefore, exploitation of this vulnerability may result in violations of confidentiality, integrity, and availability principles mandated by such standards.

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Detection Guidance

This vulnerability involves a legacy SOAP endpoint in Altium 365 SearchService that exposes search index operations without authentication. Detection would involve identifying network traffic or requests targeting this unauthenticated SOAP endpoint.

To detect potential exploitation attempts or presence of this vulnerability on your network, you can monitor for unauthenticated SOAP requests referencing workspace identifiers to the Altium 365 SearchService.

Specific commands are not provided in the available information. However, general network monitoring tools like tcpdump or Wireshark can be used to capture and analyze SOAP requests to the Altium 365 service endpoints.

• Use tcpdump to capture traffic on the relevant network interface filtering for SOAP or HTTP traffic to Altium 365 endpoints, e.g.: tcpdump -i <interface> -A port 80 or port 443
• Use curl or similar tools to manually test the legacy SOAP endpoint by sending requests without authentication to check if access is granted.
• Review logs of Altium 365 SearchService for unauthenticated access attempts or unusual search index operations.

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