{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/30154?format=json","vulnerability_id":"VCID-su7j-n4f9-y3a2","summary":"pgjdbc Client Allows Fallback to Insecure Authentication Despite channelBinding=require Configuration\n### Impact\nWhen the PostgreSQL JDBC driver is configured with channel binding set to `required` (default value is `prefer`), the driver would incorrectly allow connections to proceed with authentication methods that do not support channel binding (such as password, MD5, GSS, or SSPI  authentication). This could allow a man-in-the-middle attacker to intercept connections that users believed were protected by channel binding requirements.\n\n### Patches\nTBD\n\n### Workarounds\n\nConfigure `sslMode=verify-full` to prevent MITM attacks.\n\n### References\n\n* https://www.postgresql.org/docs/current/sasl-authentication.html#SASL-SCRAM-SHA-256\n* https://datatracker.ietf.org/doc/html/rfc7677\n* 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