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bdaf65ae51
Commitsb9a6dd4d6anddf2b28163introduced a potential desynchronisation between the PAM code and the sshd-session monitor that could result in authentication bypass if the unprivileged sshd-auth process had been compromised. Reported by Ben Edelman of NIST. Only git HEAD is affected, these changes have not yet been included in an OpenSSH release.
48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/*
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* Copyright (c) 2000 Damien Miller. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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#ifdef USE_PAM
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struct ssh;
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void start_pam(struct ssh *);
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void finish_pam(void);
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u_int do_pam_account(void);
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void do_pam_session(struct ssh *);
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void do_pam_setcred(void);
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int do_pam_putenv(char *, char *);
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char ** fetch_pam_environment(void);
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char ** fetch_pam_child_environment(void);
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void free_pam_environment(char **);
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void sshpam_thread_cleanup(void);
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void sshpam_cleanup(void);
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int sshpam_auth_passwd(Authctxt *, const char *);
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int sshpam_get_maxtries_reached(void);
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void sshpam_set_maxtries_reached(int);
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int is_pam_session_open(void);
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int sshpam_priv_kbdint_authdone(void *ctxtp);
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#endif /* USE_PAM */
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