Plaintext Command Injection Vulnerability in INN NNRPD

CVE-2012-3523

What is CVE-2012-3523?

The STARTTLS implementation in the nnrpd server of INN prior to version 2.5.3 suffers from improper I/O buffering restrictions. This flaw allows an attacker to exploit the encryption setup and execute arbitrary commands during an established TLS session. By injecting commands in cleartext form, attackers may manipulate the communication flow and potentially compromise sensitive data, thus enabling a type of attack that resembles typical man-in-the-middle exploitation techniques.

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References