forked from rpms/openssh
c9833c96a4
- use libedit in sftp (#203009) - fixed audit log injection problem (CVE-2007-3102)
138 lines
3.7 KiB
Diff
138 lines
3.7 KiB
Diff
diff -up openssh-4.7p1/session.c.pam-session openssh-4.7p1/session.c
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--- openssh-4.7p1/session.c.pam-session 2007-08-16 15:28:04.000000000 +0200
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+++ openssh-4.7p1/session.c 2007-09-06 17:37:46.000000000 +0200
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@@ -422,11 +422,6 @@ do_exec_no_pty(Session *s, const char *c
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session_proctitle(s);
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-#if defined(USE_PAM)
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- if (options.use_pam && !use_privsep)
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- do_pam_setcred(1);
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-#endif /* USE_PAM */
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-
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/* Fork the child. */
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if ((pid = fork()) == 0) {
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is_child = 1;
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@@ -557,14 +552,6 @@ do_exec_pty(Session *s, const char *comm
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ptyfd = s->ptyfd;
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ttyfd = s->ttyfd;
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-#if defined(USE_PAM)
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- if (options.use_pam) {
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- do_pam_set_tty(s->tty);
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- if (!use_privsep)
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- do_pam_setcred(1);
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- }
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-#endif
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-
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/* Fork the child. */
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if ((pid = fork()) == 0) {
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is_child = 1;
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@@ -1300,17 +1287,9 @@ do_setusercontext(struct passwd *pw)
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# ifdef __bsdi__
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setpgid(0, 0);
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# endif
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-#ifdef GSSAPI
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- if (options.gss_authentication) {
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- temporarily_use_uid(pw);
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- ssh_gssapi_storecreds();
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- restore_uid();
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- }
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-#endif
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# ifdef USE_PAM
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if (options.use_pam) {
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- do_pam_session();
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- do_pam_setcred(use_privsep);
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+ do_pam_setcred(0);
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}
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# endif /* USE_PAM */
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if (setusercontext(lc, pw, pw->pw_uid,
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@@ -1337,13 +1316,6 @@ do_setusercontext(struct passwd *pw)
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exit(1);
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}
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endgrent();
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-#ifdef GSSAPI
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- if (options.gss_authentication) {
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- temporarily_use_uid(pw);
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- ssh_gssapi_storecreds();
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- restore_uid();
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- }
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-#endif
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# ifdef USE_PAM
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/*
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* PAM credentials may take the form of supplementary groups.
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@@ -1351,8 +1323,7 @@ do_setusercontext(struct passwd *pw)
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* Reestablish them here.
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*/
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if (options.use_pam) {
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- do_pam_session();
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- do_pam_setcred(use_privsep);
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+ do_pam_setcred(0);
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}
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# endif /* USE_PAM */
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# if defined(WITH_IRIX_PROJECT) || defined(WITH_IRIX_JOBS) || defined(WITH_IRIX_ARRAY)
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diff -up openssh-4.7p1/sshd.c.pam-session openssh-4.7p1/sshd.c
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--- openssh-4.7p1/sshd.c.pam-session 2007-09-06 17:37:46.000000000 +0200
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+++ openssh-4.7p1/sshd.c 2007-09-06 17:37:46.000000000 +0200
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@@ -1831,7 +1831,21 @@ main(int ac, char **av)
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audit_event(SSH_AUTH_SUCCESS);
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#endif
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- /*
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+#ifdef GSSAPI
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+ if (options.gss_authentication) {
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+ temporarily_use_uid(authctxt->pw);
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+ ssh_gssapi_storecreds();
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+ restore_uid();
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+ }
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+#endif
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+#ifdef USE_PAM
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+ if (options.use_pam) {
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+ do_pam_setcred(1);
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+ do_pam_session();
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+ }
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+#endif
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+
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+ /*
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* In privilege separation, we fork another child and prepare
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* file descriptor passing.
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*/
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diff -up openssh-4.7p1/monitor.c.pam-session openssh-4.7p1/monitor.c
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--- openssh-4.7p1/monitor.c.pam-session 2007-09-06 17:37:46.000000000 +0200
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+++ openssh-4.7p1/monitor.c 2007-09-06 17:37:46.000000000 +0200
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@@ -1566,6 +1566,11 @@ mm_answer_term(int sock, Buffer *req)
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/* The child is terminating */
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session_destroy_all(&mm_session_close);
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+#ifdef USE_PAM
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+ if (options.use_pam)
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+ sshpam_cleanup();
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+#endif
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+
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while (waitpid(pmonitor->m_pid, &status, 0) == -1)
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if (errno != EINTR)
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exit(1);
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diff -up openssh-4.7p1/auth-pam.c.pam-session openssh-4.7p1/auth-pam.c
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--- openssh-4.7p1/auth-pam.c.pam-session 2007-08-10 06:32:34.000000000 +0200
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+++ openssh-4.7p1/auth-pam.c 2007-09-06 17:37:46.000000000 +0200
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@@ -598,15 +598,17 @@ static struct pam_conv store_conv = { ss
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void
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sshpam_cleanup(void)
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{
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- debug("PAM: cleanup");
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- if (sshpam_handle == NULL)
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+ if (sshpam_handle == NULL || (use_privsep && !mm_is_monitor()))
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return;
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+ debug("PAM: cleanup");
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pam_set_item(sshpam_handle, PAM_CONV, (const void *)&null_conv);
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if (sshpam_cred_established) {
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+ debug("PAM: deleting credentials");
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pam_setcred(sshpam_handle, PAM_DELETE_CRED);
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sshpam_cred_established = 0;
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}
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if (sshpam_session_open) {
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+ debug("PAM: closing session");
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pam_close_session(sshpam_handle, PAM_SILENT);
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sshpam_session_open = 0;
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}
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