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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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POP3 Unencrypted Cleartext Logins

Vulnerability Assessment Summary Checks if POP3 daemon allows unencrypted cleartext logins Detailed Explanation for this Vulnerability Assessment The remote host is running a POP3 daemon that permits cleartext logins over unencrypted connections. A possible hacker can uncover user names and passwords by sniffing traffic to the POP3 daemon if a less secure authentication mechanism (eg, USER command, AUTH PLAIN, AUTH LOGIN) is used. Solution : Contact your vendor for a fix or encrypt traffic with SSL / TLS using stunnel. See also : RFC 2222 for infomation about SASL. RFC 2595 for information about TLS with POP3. Network Security Threat Level: Low Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2004 George A. Theall

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