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83a32181 1diff -Nru sendmail-8.11.3/smrsh/README sendmail-8.11.3.new/smrsh/README
2--- sendmail-8.11.3/smrsh/README Thu Mar 1 07:19:27 2001
3+++ sendmail-8.11.3.new/smrsh/README Thu Mar 1 07:17:50 2001
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4@@ -6,7 +6,7 @@
5 intended as a supplement to the CERT advisory CA-93:16.sendmail.vulnerability,
6 and to the software, smrsh.c, written by Eric Allman.
7
8-
dbea50b4 9+* Modified by PLD Team to reflect different paths. *
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10
11 The smrsh(8) program is intended as a replacement for /bin/sh in the
12 program mailer definition of sendmail(8). This README file describes
13@@ -46,15 +46,15 @@
14
15
16
17-As root, install smrsh in /usr/libexec. Using the Build script:
18+As root, install smrsh in /usr/sbin. Using the Build script:
19
20 host.domain# sh Build install
21
22-For manual installation: install smrsh in the /usr/libexec
23+For manual installation: install smrsh in the /usr/sbin
24 directory, with mode 511.
25
26- host.domain# mv smrsh /usr/libexec
27- host.domain# chmod 511 /usr/libexec/smrsh
28+ host.domain# mv smrsh /usr/sbin
29+ host.domain# chmod 511 /usr/sbin/smrsh
30
31
32
33@@ -76,7 +76,7 @@
34 acceptable commands.
35
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36 If your platform doesn't have a default CMDDIR setting, you will
37-next need to create the directory /usr/adm/sm.bin and populate
38+next need to create the directory /etc/smrsh and populate
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39 it with the programs that your site feels are allowable for sendmail
40 to execute. This directory is explicitly specified in the source
41 code for smrsh, so changing this directory must be accompanied with
42@@ -85,22 +85,22 @@
43
44 You will have to be root to make these modifications.
45
46-After creating the /usr/adm/sm.bin directory, either copy the programs
47+After creating the /etc/smrsh directory, either copy the programs
48 to the directory, or establish links to the allowable programs from
49-/usr/adm/sm.bin. Change the file permissions, so that these programs
50+/etc/smrsh. Change the file permissions, so that these programs
51 can not be modified by non-root users. If you use links, you should
52 ensure that the target programs are not modifiable.
53
54 To allow the popular vacation(1) program by creating a link in the
55-/usr/adm/sm.bin directory, you should:
56+/etc/smrsh directory, you should:
57
58- host.domain# cd /usr/adm/sm.bin
dbea50b4 59- host.domain# ln -s /usr/ucb/vacation vacation
1dce6292 60+ host.domain# cd /etc/smrsh
dbea50b4 61+ host.domain# ln -s /usr/bin/vacation vacation
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62
63
64
65
66-After populating the /usr/adm/sm.bin directory, you can now configure
67+After populating the /etc/smrsh directory, you can now configure
68 sendmail to use the restricted shell. Save the current sendmail.cf
69 file prior to modifying it, as a prudent precaution.
70
71@@ -115,7 +115,7 @@
72
73 In order to configure sendmail to use smrsh, you must modify the Mprog
74 definition in the sendmail.cf file, by replacing the /bin/sh specification
75-with /usr/libexec/smrsh.
76+with /usr/sbin/smrsh.
77
78 As an example:
79
80@@ -123,14 +123,14 @@
81 Mprog, P=/bin/sh, F=lsDFMeuP, S=10, R=20, A=sh -c $u
82
83 which should be changed to:
84-Mprog, P=/usr/libexec/smrsh, F=lsDFMeuP, S=10, R=20, A=sh -c $u
dbea50b4 85- ^^^^^^^^^^^^^^^^^^
1dce6292 86+Mprog, P=/usr/sbin/smrsh, F=lsDFMeuP, S=10, R=20, A=sh -c $u
dbea50b4 87+ ^^^^^^^^^^^^^^^
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88
89 A more generic line may be:
90 Mprog, P=/bin/sh, F=lsDFM, A=sh -c $u
91
92 and should be changed to;
93-Mprog, P=/usr/libexec/smrsh, F=lsDFM, A=sh -c $u
94+Mprog, P=/usr/sbin/smrsh, F=lsDFM, A=sh -c $u
95
96
97 After modifying the Mprog definition in the sendmail.cf file, if a frozen
98@@ -141,7 +141,7 @@
99 a search of the strings(1) output of the sendmail binary.
100
101 In order to create a new frozen configuration, if it is required:
102- host.domain# /usr/lib/sendmail -bz
103+ host.domain# /usr/sbin/sendmail -bz
104
105 Now re-start the sendmail process. An example of how to do this on
106 a typical system follows:
83a32181 107diff -Nru sendmail-8.11.3/smrsh/smrsh.8 sendmail-8.11.3.new/smrsh/smrsh.8
108--- sendmail-8.11.3/smrsh/smrsh.8 Thu Mar 1 07:19:27 2001
109+++ sendmail-8.11.3.new/smrsh/smrsh.8 Thu Mar 1 07:17:50 2001
dbea50b4 110@@ -39,7 +39,7 @@
1dce6292 111 .I smrsh
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112 limits programs to be in a single directory,
113 by default
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114-/usr/adm/sm.bin,
115+/etc/smrsh,
116 allowing the system administrator to choose the set of acceptable commands,
117 and to the shell builtin commands ``exec'', ``exit'', and ``echo''.
118 It also rejects any commands with the characters
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119@@ -47,7 +47,7 @@
120 or `\en' (newline)
121 on the command line to prevent ``end run'' attacks.
122 It allows ``||'' and ``&&'' to enable commands like:
123-``"|exec /usr/local/bin/procmail -f- /etc/procmailrcs/user || exit 75"''
124+``"|exec /usr/bin/procmail -f- /etc/procmailrcs/user || exit 75"''
125 .PP
126 Initial pathnames on programs are stripped,
127 so forwarding to ``/usr/ucb/vacation'',
128@@ -56,10 +56,10 @@
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129 and
130 ``vacation''
131 all actually forward to
132-``/usr/adm/sm.bin/vacation''.
133+``/etc/smrsh/vacation''.
134 .PP
135 System administrators should be conservative about populating
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136-the sm.bin directory.
137+the /etc/smrsh directory.
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138 Reasonable additions are
139 .IR vacation (1),
140 .IR procmail (1),
dbea50b4 141@@ -69,20 +69,12 @@
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142 (such as
143 .IR perl (1))
144 in the
145-sm.bin
146+/etc/smrsh
147 directory.
148 Note that this does not restrict the use of shell or perl scripts
dbea50b4 149 in the sm.bin directory (using the ``#!'' syntax);
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150 it simply disallows execution of arbitrary programs.
151-.SH COMPILATION
152-Compilation should be trivial on most systems.
153-You may need to use \-DPATH=\e"\fIpath\fP\e"
154-to adjust the default search path
155-(defaults to ``/bin:/usr/bin:/usr/ucb'')
156-and/or \-DCMDBIN=\e"\fIdir\fP\e"
157-to change the default program directory
158-(defaults to ``/usr/adm/sm.bin'').
159 .SH FILES
160-/usr/adm/sm.bin \- directory for restricted programs
161+/etc/smrsh \- directory for restricted programs
162 .SH SEE ALSO
163 sendmail(8)
83a32181 164diff -Nru sendmail-8.11.3/smrsh/smrsh.c sendmail-8.11.3.new/smrsh/smrsh.c
165--- sendmail-8.11.3/smrsh/smrsh.c Thu Mar 1 07:19:27 2001
166+++ sendmail-8.11.3.new/smrsh/smrsh.c Thu Mar 1 07:20:44 2001
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167@@ -77,7 +77,7 @@
168 # if defined(HPUX10) || defined(HPUX11) || SOLARIS >= 20800
169 # define CMDDIR "/var/adm/sm.bin"
83a32181 170 # else /* HPUX10 || HPUX11 || SOLARIS >= 20800 */
dbea50b4 171-# define CMDDIR "/usr/adm/sm.bin"
83a32181 172+# define CMDDIR "/usr/smrsh"
173 # endif /* HPUX10 || HPUX11 || SOLARIS >= 20800 */
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174 #endif /* ! CMDDIR */
175
dbea50b4 176@@ -86,7 +86,7 @@
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177
178 /* default search path */
179 #ifndef PATH
180-# define PATH "/bin:/usr/bin:/usr/ucb"
dbea50b4 181+# define PATH "/bin:/usr/bin"
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182 #endif /* ! PATH */
183
184 #ifndef __P
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