Executive Summary

CVE-2025-70828 is a vulnerability in Datart version 1.0.0-rc.3 related to improper input validation of the JDBC URL parameter during data source configuration.

An authenticated attacker with data source configuration privileges can inject malicious parameters into the JDBC connection string, such as `allowLoadLocalInfile=true`.

By directing the JDBC URL to connect to a rogue MySQL server controlled by the attacker, the attacker exploits the LOAD DATA LOCAL INFILE feature to cause the Datart server to send local files from its filesystem (like `/etc/passwd`, configuration files, or source code) to the attacker.

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Impact Analysis

This vulnerability can lead to arbitrary file disclosure, exposing sensitive files on the Datart server to an attacker.

The exposure of sensitive information such as configuration files, source code, or system files can result in further server compromise or additional attacks.

Overall, the impact is considered high severity due to the potential for significant data leakage and system compromise.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': "This vulnerability can be detected by monitoring for suspicious POST requests to the Datart server's `/api/v1/data-provider/test` endpoint that include JDBC URLs with parameters such as `allowLoadLocalInfile=true`, `allowUrlInLocalInfile=true`, and unusually high `maxAllowedPacket` values."}, {'type': 'paragraph', 'content': 'You can look for signs of exploitation by inspecting web server logs or network traffic for these specific patterns in the JSON payload.'}, {'type': 'paragraph', 'content': 'Example commands to detect potential exploitation attempts include:'}, {'type': 'list_item', 'content': "Using grep on server logs to find suspicious JDBC URLs: `grep -i 'allowLoadLocalInfile=true' /path/to/datart/logs/*`"}, {'type': 'list_item', 'content': 'Using tcpdump or Wireshark to filter HTTP POST requests to `/api/v1/data-provider/test` endpoint and inspect payloads for JDBC URL parameters.'}, {'type': 'list_item', 'content': 'Checking for unusual MySQL connection attempts or connections to unknown MySQL servers from the Datart server.'}] [1]

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Mitigation Strategies

Immediate mitigation steps include restricting or disabling the ability to configure JDBC URLs with parameters that enable `LOAD DATA LOCAL INFILE` features, such as `allowLoadLocalInfile=true`.

Ensure that only trusted users have data source configuration privileges to prevent attackers from injecting malicious JDBC URLs.

Monitor and block outgoing connections from the Datart server to untrusted or unknown MySQL servers to prevent data exfiltration.

Apply any available patches or updates from the Datart project that address this vulnerability once released.

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