This file is indexed.

/usr/bin/expect_passmass is in expect 5.45-6.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
#!/bin/sh
# -*- tcl -*-
# The next line is executed by /bin/sh, but not tcl \
exec tclsh8.6 "$0" ${1+"$@"}

package require Expect


# passmass: change password on many machines
# Synopsis: passmass host1 host2 host3 ....
# Don Libes - March 11, 1991

# Description: Change passwords on the named machines.
#
# See passmass.man for further info.

exp_version -exit 5.0

if {$argc==0} {
    send_user "usage: $argv0 host1 host2 host3 . . .\n"
    exit
}

expect_before -i $user_spawn_id \003 exit

proc badhost {host emsg} {
    global badhosts

    send_user "\r\n\007password not changed on $host - $emsg\n\n"
    if {0==[llength $badhosts]} {
	set badhosts $host
    } else {
	set badhosts [concat $badhosts $host]
    }
}

# set defaults
set login "rlogin"
set program "passwd"
set user [exec whoami]
set su 0

set timeout -1
stty -echo

if {!$su} {
    send_user "old password: "
    expect_user -re "(.*)\n"
    send_user "\n"
    set password(old) $expect_out(1,string)
    set password(login) $expect_out(1,string)
    send_user "new password: "
    expect_user -re "(.*)\n"
    send_user "\n"
    set password(new) $expect_out(1,string)
    send_user "retype new password: "
    expect_user -re "(.*)\n"
    set password(newcheck) $expect_out(1,string)
    send_user "\n"
} else {
    send_user "login password: "
    expect_user -re "(.*)\n"
    send_user "\n"
    set password(login) $expect_out(1,string)
    send_user "root password: "
    expect_user -re "(.*)\n"
    send_user "\n"
    set password(old) $expect_out(1,string)
    send_user "new password: "
    expect_user -re "(.*)\n"
    send_user "\n"
    set password(new) $expect_out(1,string)
    send_user "retype new password: "
    expect_user -re "(.*)\n"
    set password(newcheck) $expect_out(1,string)
    send_user "\n"
}

stty echo
trap exit SIGINT

if ![string match $password(new) $password(newcheck)] {
    send_user "mismatch - password unchanged\n"
    exit
}

set timeout -1

set badhosts {}
for {set i 0} {$i<$argc} {incr i} {
    set arg [lindex $argv $i]
    switch -- $arg "-user" {
	incr i
	set user [lindex $argv $i]
	continue
    } "-prompt" {
	incr i
	set prompt [lindex $argv $i]
	continue
    } "-rlogin" {
	set login "rlogin"
	continue
    } "-slogin" {
	set login "slogin"
	continue
    } "-ssh" {
	set login "ssh"
	continue
    } "-telnet" {
	set login "telnet"
	continue
    } "-program" {
	incr i
	set program [lindex $argv $i]
	continue
    } "-timeout" {
	incr i
	set timeout [lindex $argv $i]
	continue
    } "-su" {
	incr i
	set su [lindex $argv $i]
	continue
    }

    set host $arg
    if {[string match $login "rlogin"]} {
	set pid [spawn rlogin $host -l $user]
    } elseif {[string match $login "slogin"]} {
	set pid [spawn slogin $host -l $user]
    } elseif {[string match $login "ssh"]} {
	set pid [spawn ssh $host -l $user]
    } else {
	set pid [spawn telnet $host]
	expect -nocase -re "(login|username):.*" {
	    send "$user\r"
	}
    }

    if ![info exists prompt] {
	if {[string match $user "root"]} {
	    set prompt "# "
	} else {
	    set prompt "(%|\\\$|#) "
	}
    }

    set logged_in 0
    while {1} {
	expect -nocase "password*" {
	    send "$password(login)\r"
	} eof {
	    badhost $host "spawn failed"
	    break
	} timeout {
	    badhost $host "could not log in (or unrecognized prompt)"
	    exec kill $pid
	    expect eof
	    break
	} -re "incorrect|invalid" {
	    badhost $host "bad password or login"
	    exec kill $pid
	    expect eof
	    break
	} -re $prompt {
	    set logged_in 1
	    break
	}
    }

    if (!$logged_in) {
	wait
	continue
    }

    if ($su) {
	send "su -\r"
	expect -nocase "password:"
	send "$password(old)\r"
	expect "# "
	send "$program root\r"
    } else {
	send "$program\r"
    }

    expect -nocase -re "(old|existing login) password:.*" {
	send "$password(old)\r"
	expect -nocase "sorry*" {
	    badhost $host "old password is bad?"
	    continue
	} -nocase "password:"
    } -nocase -re "new password:" {
	# got prompt, fall through
    } timeout {
	badhost $host "could not recognize prompt for password"
	continue
    }
    send "$password(new)\r"
    expect -re "not changed|unchanged" {
	badhost $host "new password is bad?"
	continue
    } -nocase -re "(password|verification|verify|again):.*"
    send "$password(new)\r"
    expect -nocase -re "(not changed|incorrect|choose new).*" {
	badhost $host "password is bad?"
	continue
    } -re "$prompt"
    send_user "\n"

    close
    wait
}

if {[llength $badhosts]} {
    send_user "\nfailed to set password on $badhosts\n"
}