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    Linux BSD-derived Telnet Service Encryption Key ID Buffer Overflow

    This module exploits a buffer overflow in the encryption option handler of the Linux BSD-derived telnet service (inetutils or krb5-telnet). Most Linux distributions use NetKit-derived telnet daemons, so this flaw only applies to a small subset of Linux systems running telnetd.

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    Module Name



    • Jaime Penalba Estebanez <jpenalbae [at] gmail.com>
    • Brandon Perry <bperry.volatile [at] gmail.com>
    • Dan Rosenberg
    • hdm <x [at] hdm.io>



    • Automatic
    • Red Hat Enterprise Linux 3 (krb5-telnet)


    • linux



    Module Options

    To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

    msf > use exploit/linux/telnet/telnet_encrypt_keyid msf exploit(telnet_encrypt_keyid) > show targets ...targets... msf exploit(telnet_encrypt_keyid) > set TARGET <target-id> msf exploit(telnet_encrypt_keyid) > show options ...show and set options... msf exploit(telnet_encrypt_keyid) > exploit

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