Author: asomers
Date: Mon Sep 12 17:35:45 2016
New Revision: 305750
URL: https://svnweb.freebsd.org/changeset/base/305750

Log:
  MFC r302778
  
  pw should sanitize the argument of -w.
  
  Otherwise, it will silently disable the login for the selected account if
  the argument is unrecognizable.
  
  usr.sbin/pw/pw.h
  usr.sbin/pw/pw_conf.c
  usr.sbin/pw/pw_user.c
          Use separate rules to validate boolean parameters and passwd
          parameters.  Error out if a password parameter cannot be parsed.
  
  usr.sbin/pw/tests/Makefile
  usr.sbin/pw/tests/crypt.c
  usr.sbin/pw/tests/pw_useradd.sh
  usr.sbin/pw/tests/pw_usermod.sh
          Add tests for the validation.  Also, enhance existing
          password-related tests to actually validate that the correct hash is
          written to master.passwd.

Added:
  stable/10/usr.sbin/pw/tests/crypt.c
     - copied unchanged from r302778, head/usr.sbin/pw/tests/crypt.c
Modified:
  stable/10/usr.sbin/pw/pw.h
  stable/10/usr.sbin/pw/pw_conf.c
  stable/10/usr.sbin/pw/pw_user.c
  stable/10/usr.sbin/pw/tests/Makefile
  stable/10/usr.sbin/pw/tests/pw_useradd.sh
  stable/10/usr.sbin/pw/tests/pw_usermod.sh
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/usr.sbin/pw/pw.h
==============================================================================
--- stable/10/usr.sbin/pw/pw.h  Mon Sep 12 17:29:20 2016        (r305749)
+++ stable/10/usr.sbin/pw/pw.h  Mon Sep 12 17:35:45 2016        (r305750)
@@ -93,6 +93,7 @@ int groupadd(struct userconf *, char *na
 int nis_update(void);
 
 int boolean_val(char const * str, int dflt);
+int passwd_val(char const * str, int dflt);
 char const *boolean_str(int val);
 char *newstr(char const * p);
 

Modified: stable/10/usr.sbin/pw/pw_conf.c
==============================================================================
--- stable/10/usr.sbin/pw/pw_conf.c     Mon Sep 12 17:29:20 2016        
(r305749)
+++ stable/10/usr.sbin/pw/pw_conf.c     Mon Sep 12 17:35:45 2016        
(r305750)
@@ -186,6 +186,22 @@ boolean_val(char const * str, int dflt)
                for (i = 0; boolfalse[i]; i++)
                        if (strcmp(str, boolfalse[i]) == 0)
                                return 0;
+       }
+       return dflt;
+}
+
+int
+passwd_val(char const * str, int dflt)
+{
+       if ((str = unquote(str)) != NULL) {
+               int             i;
+
+               for (i = 0; booltrue[i]; i++)
+                       if (strcmp(str, booltrue[i]) == 0)
+                               return 1;
+               for (i = 0; boolfalse[i]; i++)
+                       if (strcmp(str, boolfalse[i]) == 0)
+                               return 0;
 
                /*
                 * Special cases for defaultpassword
@@ -194,6 +210,8 @@ boolean_val(char const * str, int dflt)
                        return -1;
                if (strcmp(str, "none") == 0)
                        return -2;
+
+               errx(1, "Invalid value for default password");
        }
        return dflt;
 }
@@ -258,7 +276,7 @@ read_userconfig(char const * file)
 #endif
                        switch (i) {
                        case _UC_DEFAULTPWD:
-                               config.default_password = boolean_val(q, 1);
+                               config.default_password = passwd_val(q, 1);
                                break;
                        case _UC_REUSEUID:
                                config.reuse_uids = boolean_val(q, 0);

Modified: stable/10/usr.sbin/pw/pw_user.c
==============================================================================
--- stable/10/usr.sbin/pw/pw_user.c     Mon Sep 12 17:29:20 2016        
(r305749)
+++ stable/10/usr.sbin/pw/pw_user.c     Mon Sep 12 17:35:45 2016        
(r305750)
@@ -1317,7 +1317,7 @@ pw_user_add(int argc, char **argv, char 
 
        mix_config(cmdcnf, cnf);
        if (default_passwd)
-               cmdcnf->default_password = boolean_val(default_passwd,
+               cmdcnf->default_password = passwd_val(default_passwd,
                    cnf->default_password);
        if (genconf) {
                if (name != NULL)
@@ -1719,7 +1719,7 @@ pw_user_mod(int argc, char **argv, char 
                if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
                        warn("setting crypt(3) format");
                login_close(lc);
-               cnf->default_password = boolean_val(passwd,
+               cnf->default_password = passwd_val(passwd,
                    cnf->default_password);
                pwd->pw_passwd = pw_password(cnf, pwd->pw_name, dryrun);
                edited = true;

Modified: stable/10/usr.sbin/pw/tests/Makefile
==============================================================================
--- stable/10/usr.sbin/pw/tests/Makefile        Mon Sep 12 17:29:20 2016        
(r305749)
+++ stable/10/usr.sbin/pw/tests/Makefile        Mon Sep 12 17:35:45 2016        
(r305750)
@@ -2,6 +2,11 @@
 
 TESTSDIR=      ${TESTSBASE}/usr.sbin/pw
 
+BINDIR=                ${TESTSDIR}
+
+PROGS+=                crypt
+LDADD+=                -lcrypt
+
 ATF_TESTS_SH=  pw_etcdir \
                pw_lock \
                pw_config \

Copied: stable/10/usr.sbin/pw/tests/crypt.c (from r302778, 
head/usr.sbin/pw/tests/crypt.c)
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ stable/10/usr.sbin/pw/tests/crypt.c Mon Sep 12 17:35:45 2016        
(r305750, copy of r302778, head/usr.sbin/pw/tests/crypt.c)
@@ -0,0 +1,45 @@
+/*-
+ * Copyright (c) 2016 Spectra Logic Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <err.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char** argv)
+{
+       char *salt, *pass, *hash;
+
+       if (argc < 3)
+               errx(1, "Usage: crypt <salt> <password>");
+       salt = argv[1];
+       pass = argv[2];
+
+       hash = crypt(pass, salt);
+       printf("%s", hash);
+       return (hash == NULL ? 1 : 0);
+}

Modified: stable/10/usr.sbin/pw/tests/pw_useradd.sh
==============================================================================
--- stable/10/usr.sbin/pw/tests/pw_useradd.sh   Mon Sep 12 17:29:20 2016        
(r305749)
+++ stable/10/usr.sbin/pw/tests/pw_useradd.sh   Mon Sep 12 17:35:45 2016        
(r305750)
@@ -235,9 +235,12 @@ atf_test_case user_add_password_from_h
 user_add_password_from_h_body() {
        populate_etc_skel
 
-       atf_check -s exit:0 ${PW} useradd test -h 0 <<-EOF
-       $(echo test)
+       atf_check -s exit:0 ${PW} useradd foo -h 0 <<-EOF
+       $(echo mypassword)
        EOF
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "mypassword"
 }
 
 atf_test_case user_add_R
@@ -325,17 +328,47 @@ user_add_already_exists_body() {
                ${PW} useradd foo
 }
 
+atf_test_case user_add_w_error
+user_add_w_error_body() {
+       populate_etc_skel
+
+       atf_check -s exit:1 -e match:"pw: Invalid value for default password" \
+               ${PW} useradd foo -w invalid_value
+}
+
+atf_test_case user_add_w_no
+user_add_w_no_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo -w no
+       atf_check -s exit:0 -o match:"^foo:\*" grep "^foo:" $HOME/master.passwd
+}
+
+atf_test_case user_add_w_none
+user_add_w_none_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo -w none
+       atf_check -s exit:0 -o match:"^foo::" grep "^foo:" $HOME/master.passwd
+}
+
+atf_test_case user_add_w_random
+user_add_w_random_body() {
+       populate_etc_skel
+
+       password=`${PW} useradd foo -w random | cat`
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "$password"
+}
+
 atf_test_case user_add_w_yes
 user_add_w_yes_body() {
        populate_etc_skel
-       atf_check -s exit:0 ${PW} useradd foo -w yes
-       atf_check -s exit:0 \
-               -o match:'^foo:\$.*' \
-               grep "^foo" ${HOME}/master.passwd
-       atf_check -s exit:0 ${PW} usermod foo -w yes
-       atf_check -s exit:0 \
-               -o match:'^foo:\$.*' \
-               grep "^foo" ${HOME}/master.passwd
+       password=`${PW} useradd foo -w random | cat`
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "$password"
 }
 
 atf_test_case user_add_with_pw_conf
@@ -380,6 +413,10 @@ atf_init_test_cases() {
        atf_add_test_case user_add_uid_too_large
        atf_add_test_case user_add_bad_shell
        atf_add_test_case user_add_already_exists
+       atf_add_test_case user_add_w_error
+       atf_add_test_case user_add_w_no
+       atf_add_test_case user_add_w_none
+       atf_add_test_case user_add_w_random
        atf_add_test_case user_add_w_yes
        atf_add_test_case user_add_with_pw_conf
 }

Modified: stable/10/usr.sbin/pw/tests/pw_usermod.sh
==============================================================================
--- stable/10/usr.sbin/pw/tests/pw_usermod.sh   Mon Sep 12 17:29:20 2016        
(r305749)
+++ stable/10/usr.sbin/pw/tests/pw_usermod.sh   Mon Sep 12 17:35:45 2016        
(r305750)
@@ -157,8 +157,9 @@ user_mod_h_body() {
        atf_check -s exit:0 ${PW} usermod foo -h 0 <<- EOF
        $(echo a)
        EOF
-       atf_check -s exit:0 -o not-match:"^foo:\*:.*" \
-               grep "^foo" ${HOME}/master.passwd
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "a"
        atf_check -s exit:0 ${PW} usermod foo -h - <<- EOF
        $(echo b)
        EOF
@@ -203,6 +204,56 @@ user_mod_uid_body() {
        atf_check -s exit:0 ${PW} usermod foo -u 5000
 }
 
+atf_test_case user_mod_w_error
+user_mod_w_error_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo
+       atf_check -s exit:1 -e match:"pw: Invalid value for default password" \
+               ${PW} usermod foo -w invalid_value
+}
+
+atf_test_case user_mod_w_no
+user_mod_w_no_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo
+       atf_check -s exit:0 ${PW} usermod foo -w no
+       atf_check -s exit:0 -o match:"^foo:\*" grep "^foo:" $HOME/master.passwd
+}
+
+atf_test_case user_mod_w_none
+user_mod_w_none_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo
+       atf_check -s exit:0 ${PW} usermod foo -w none
+       atf_check -s exit:0 -o match:"^foo::" grep "^foo:" $HOME/master.passwd
+}
+
+atf_test_case user_mod_w_random
+user_mod_w_random_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo
+       password=`${PW} usermod foo -w random | cat`
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "$password"
+}
+
+atf_test_case user_mod_w_yes
+user_mod_w_yes_body() {
+       populate_etc_skel
+
+       atf_check -s exit:0 ${PW} useradd foo
+       atf_check -s exit:0 ${PW} usermod foo -w yes
+       passhash=`awk -F ':' '/^foo:/ {print $2}' $HOME/master.passwd`
+       atf_check -s exit:0 -o inline:$passhash \
+               $(atf_get_srcdir)/crypt $passhash "foo"
+}
+
+
 atf_init_test_cases() {
        atf_add_test_case user_mod
        atf_add_test_case user_mod_noupdate
@@ -219,4 +270,9 @@ atf_init_test_cases() {
        atf_add_test_case user_mod_H
        atf_add_test_case user_mod_renamehome
        atf_add_test_case user_mod_uid
+       atf_add_test_case user_mod_w_error
+       atf_add_test_case user_mod_w_no
+       atf_add_test_case user_mod_w_none
+       atf_add_test_case user_mod_w_random
+       atf_add_test_case user_mod_w_yes
 }
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