Improper Certificate Validation in Ayms Node-To Master TLS Socket

Impact Analysis

This vulnerability can impact you by allowing attackers to intercept and potentially alter sensitive data transmitted over the network.

Because the application does not validate TLS/SSL certificates, attackers can impersonate legitimate servers, compromising the security and integrity of communications.

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Executive Summary

[{'type': 'paragraph', 'content': "CVE-2025-70043 is a vulnerability in the Ayms node-Tor master version related to improper certificate validation (CWE-295). The application disables TLS/SSL certificate validation by setting the 'rejectUnauthorized' option to false in the TLS socket configuration."}, {'type': 'paragraph', 'content': 'This misconfiguration means that the application does not verify the authenticity of TLS/SSL certificates, which can allow attackers to perform man-in-the-middle (MITM) attacks by spoofing servers.'}] [1]

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Detection Guidance

[{'type': 'paragraph', 'content': "This vulnerability can be detected by inspecting the application's TLS socket configuration to check if the 'rejectUnauthorized' option is set to false, which disables proper TLS/SSL certificate validation."}, {'type': 'paragraph', 'content': "On systems running the affected node-Tor application, you can search the source code or runtime configuration for the string 'rejectUnauthorized: false'."}, {'type': 'list_item', 'content': 'Use grep or similar command to find the setting in code or configuration files, for example: grep -r "rejectUnauthorized: false" /path/to/node-tor/'}, {'type': 'list_item', 'content': 'Monitor network traffic for suspicious man-in-the-middle activity, such as unexpected TLS certificate changes or untrusted certificates.'}] [1]

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Mitigation Strategies

[{'type': 'paragraph', 'content': "To mitigate this vulnerability, immediately ensure that the TLS socket option 'rejectUnauthorized' is set to true, enabling proper certificate validation."}, {'type': 'paragraph', 'content': 'This change will prevent the application from accepting invalid or spoofed TLS/SSL certificates, protecting against man-in-the-middle attacks.'}, {'type': 'list_item', 'content': "Review and update the node-Tor application's configuration or source code to remove or correct any instance where 'rejectUnauthorized' is set to false."}, {'type': 'list_item', 'content': 'Restart the application after applying the configuration changes to ensure the new settings take effect.'}, {'type': 'list_item', 'content': 'Consider monitoring network traffic for any signs of interception or tampering during the mitigation process.'}] [1]

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Compliance Impact

I don't know

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