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pam_conv
2009 Sep 08
1
openssh, pam, challenge-response problem
...ed the following problem:
The radius server is configured to accept username and generic
password, it then generates some textual string as a challenge-request
and waits again for username and this time for challenge-response.
Pam_radius use pam->conv function, retrieved with
pam_get_item(PAM_COM), with challenge-request and type
PAM_PROMPT_ECHO_ON, to present the challenge-request to user and to
retrieve the challenge-response.
OpenSSH sets the PAM_CONV function to sshpam_passwd_conv() (defined in
pam_auth.c). But this function doesn't have implemented the
PAM_PROMPT_ECHO_ON flav...