blob: 66a8e61982b044cc1db79b72b6e9f742ffe38586 (
plain)
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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
|
#!/bin/sh
#################################################################################
#
# Lynis
# ------------------
#
# Copyright 2007-2013, Michael Boelen
# Copyright 2007-2017, CISOfy
#
# Website : https://cisofy.com
# Blog : http://linux-audit.com
# GitHub : https://github.com/CISOfy/lynis
#
# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
# welcome to redistribute it under the terms of the GNU General Public License.
# See LICENSE file for usage of this software.
#
#################################################################################
#
# Printers and spools
#
#################################################################################
#
CUPSD_CONFIG_LOCS="/etc/cups /usr/local/etc/cups /private/etc/cups"
CUPSD_CONFIG_FILE=""
CUPSD_RUNNING=0
CUPSD_FOUND=0
LPD_RUNNING=0
PRINTING_DAEMON=""
QDAEMON_CONFIG_ENABLED=0
QDAEMON_CONFIG_FILE=""
QDAEMON_RUNNING=0
#
#################################################################################
#
InsertSection "Printers and Spools"
#
#################################################################################
#
# Test : PRNT-2302
# Description : Check printcap file consistency
Register --test-no PRNT-2302 --os FreeBSD --weight L --network NO --category security --description "Check for printcap consistency"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Searching /usr/sbin/chkprintcap"
if [ ! -f /usr/sbin/chkprintcap ]; then
Display --indent 2 --text "- Checking chkprintcap" --result "${STATUS_NOT_FOUND}" --color WHITE
LogText "Result: /usr/sbin/chkprintcap NOT found, test skipped."
else
LogText "Result: /usr/sbin/chkprintcap found"
FIND=$(/usr/sbin/chkprintcap > /dev/null ; echo $?)
# Only an exit code of zero should come back. Use string instead of integer, due unexpected trash
if [ "${FIND}" = "0" ]; then
Display --indent 2 --text "- Integrity check of printcap file" --result "${STATUS_OK}" --color GREEN
LogText "Result: chkprintcap did NOT gave any warnings"
else
Display --indent 2 --text "- Integrity check of printcap file" --result "${STATUS_WARNING}" --color RED
ReportSuggestion ${TEST_NO} "Run chkprintcap manually to test printcap file"
LogText "Output from chkprintcap: ${FIND}"
LogText "Run chkprintcap and check the /etc/printcap file."
fi
fi
fi
#
#################################################################################
#
# Test : PRNT-2304
# Description : Check cupsd status
Register --test-no PRNT-2304 --weight L --network NO --category security --description "Check cupsd status"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking cupsd status"
#FIND=$(${PSBINARY} ax | ${GREPBINARY} "cupsd" | ${GREPBINARY} -v "grep" | ${GREPBINARY} -v apcupsd)
IsRunning cupsd
if [ ${RUNNING} -eq 1 ]; then
Display --indent 2 --text "- Checking cups daemon" --result "${STATUS_RUNNING}" --color GREEN
LogText "Result: cups daemon running"
CUPSD_RUNNING=1; PRINTING_DAEMON="cups"
else
Display --indent 2 --text "- Checking cups daemon" --result "${STATUS_NOT_FOUND}" --color WHITE
LogText "Result: cups daemon not running, cups daemon tests skipped"
fi
fi
#
#################################################################################
#
# Test : PRNT-2306
# Description : Check CUPSd configuration file
if [ ${CUPSD_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no PRNT-2306 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd configuration file"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Searching cupsd configuration file"
for I in ${CUPSD_CONFIG_LOCS}; do
if [ -f ${I}/cupsd.conf ]; then
if FileIsReadable ${I}/cupsd.conf; then
CUPSD_CONFIG_FILE="${I}/cupsd.conf"
LogText "Result: found ${CUPSD_CONFIG_FILE}"
fi
fi
done
if [ ! "${CUPSD_CONFIG_FILE}" = "" ]; then
Display --indent 2 --text "- Checking CUPS configuration file" --result "${STATUS_OK}" --color GREEN
LogText "Result: configuration file found (${CUPSD_CONFIG_FILE})"
CUPSD_FOUND=1
else
Display --indent 2 --text "- Checking CUPS configuration file" --result "${STATUS_NOT_FOUND}" --color RED
LogText "Result: configuration file not found"
LogText "Development: no CUPS configuration file found"
fi
fi
#
#################################################################################
#
# Test : PRNT-2307
# Description : Check CUPSd configuration file permissions
# To Do : Add function
if [ ${CUPSD_FOUND} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no PRNT-2307 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd configuration file permissions"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking CUPS configuration file permissions"
FIND=$(ls -l ${CUPSD_CONFIG_FILE} | ${CUTBINARY} -c 2-10)
LogText "Result: found ${FIND}"
if [ "${FIND}" = "r--------" -o "${FIND}" = "rw-------" -o "${FIND}" = "rw-r-----" -o "${FIND}" = "rw-rw----" ]; then
Display --indent 4 --text "- File permissions" --result "${STATUS_OK}" --color GREEN
AddHP 1 1
else
Display --indent 4 --text "- File permissions" --result "${STATUS_WARNING}" --color RED
ReportSuggestion ${TEST_NO} "Access to CUPS configuration could be more strict."
AddHP 1 2
fi
fi
#
#################################################################################
#
# Test : PRNT-2308
# Description : Check CUPS daemon network configuration
if [ ${CUPSD_FOUND} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no PRNT-2308 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check CUPSd network configuration"
if [ ${SKIPTEST} -eq 0 ]; then
FOUND=0
# Checking network addresses
LogText "Test: Checking CUPS daemon listening network addresses"
FIND=$(${GREPBINARY} "^Listen" ${CUPSD_CONFIG_FILE} | ${GREPBINARY} -v "/" | ${AWKBINARY} '{ print $2 }')
N=0
for I in ${FIND}; do
LogText "Found network address: ${I}"
N=$((N + 1))
FOUND=1
done
if [ ${FOUND} -eq 0 ]; then
ReportException "${TEST_NO}:1" "No listen statement found in CUPS configuration file"
fi
# Check if daemon is only running on localhost
if [ ${N} -eq 1 ]; then
if [ "${FIND}" = "localhost:631" -o "${FIND}" = "127.0.0.1:631" ]; then
LogText "Result: CUPS daemon only running on localhost"
AddHP 2 2
else
LogText "Result: CUPS daemon running on one or more interfaces (not limited to localhost)"
ReportSuggestion ${TEST_NO} "Check CUPS configuration if it really needs to listen on the network"
AddHP 1 2
fi
else
LogText "Result: CUPS daemon is running on several network addresses"
ReportSuggestion ${TEST_NO} "Check CUPS configuration if it really needs to run on several network addresses"
AddHP 1 2
fi
# Checking sockets
LogText "Test: Checking cups daemon listening sockets"
FIND=$(${GREPBINARY} "^Listen" ${CUPSD_CONFIG_FILE} | ${GREPBINARY} "/" | ${AWKBINARY} '{ print $2 }')
for I in ${FIND}; do
LogText "Found socket address: ${I}"
N=$((N + 1))
done
if [ ${N} -eq 0 ]; then
Display --indent 2 --text "- Checking CUPS addresses/sockets" --result "${STATUS_NONE}" --color WHITE
LogText "Result: no addresses found on which CUPS daemon is listening"
else
Display --indent 2 --text "- Checking CUPS addresses/sockets" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: CUPS daemon is listening on network/socket"
fi
fi
#
#################################################################################
#
# Test : PRNT-2314
# Description : Check lpd status
Register --test-no PRNT-2314 --weight L --network NO --category security --description "Check lpd status"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking lpd status"
IsRunning lpd
if [ ${RUNNING} -eq 1 ]; then
Display --indent 2 --text "- Checking lp daemon" --result "${STATUS_RUNNING}" --color GREEN
LogText "Result: lp daemon running"
LPD_RUNNING=1; PRINTING_DAEMON="lp"
else
Display --indent 2 --text "- Checking lp daemon" --result "${STATUS_NOT_RUNNING}" --color WHITE
LogText "Result: lp daemon not running"
AddHP 4 4
fi
fi
#
#################################################################################
#
# Test : PRNT-23xx
# Description : Test Linux printcap file
#if [ ${CUPSD_RUNNING} -eq 1 -a ! "${CUPSD_CONFIG_FILE}" = "" ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
#Register --test-no PRNT-23xx--preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check cupsd address configuration"
#if [ ${SKIPTEST} -eq 0 ]; then
#if [ "${OS}" = "Linux" ]; then
# echo " - Testing printcap file [Test not implemented yet]"
# # Check printcap with checkpc command
#fi
#
#################################################################################
#
# Test : PRNT-2416
# Description : Check /etc/qconfig file
Register --test-no PRNT-2316 --os AIX --weight L --network NO --category security --description "Checking /etc/qconfig file"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking /etc/qconfig"
QDAEMON_CONFIG_FILE="/etc/qconfig"
FileIsReadable ${QDAEMON_CONFIG_FILE}
if [ ${CANREAD} -eq 1 ]; then
FIND=$(${GREPBINARY} -v "^\*" ${QDAEMON_CONFIG_FILE} | ${EGREPBINARY} "backend|device")
if [ ! "${FIND}" = "" ]; then
LogText "Result: printers are defined in ${QDAEMON_CONFIG_FILE}"
Display --indent 2 --text "- Checking /etc/qconfig file" --result "${STATUS_FOUND}" --color GREEN
QDAEMON_CONFIG_ENABLED=1
else
LogText "Result: ${QDAEMON_CONFIG_FILE} is empty. No printers are defined"
Display --indent 2 --text "- Checking /etc/qconfig file" --result EMPTY --color WHITE
fi
else
LogText "Result: Can not read ${QDAEMON_CONFIG_FILE} (no permission)"
fi
fi
#
#################################################################################
#
# Test : PRNT-2418
# Description : Check qdaemon printer spooler status
Register --test-no PRNT-2418 --os AIX --weight L --network NO --category security --description "Checking qdaemon printer spooler status"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking qdaemon status"
IsRunning qdaemon
if [ ${RUNNING} -eq 1 ]; then
LogText "Result: qdaemon daemon running"
Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_RUNNING}" --color GREEN
QDAEMON_RUNNING=1; PRINTING_DAEMON="qdaemon"
else
if [ ${QDAEMON_CONFIG_ENABLED} -eq 1 ]; then
LogText "Result: qdaemon daemon not running"
Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_NOT_RUNNING}" --color RED
ReportSuggestion ${TEST_NO} "Activate print spooler daemon (qdaemon) in order to process print jobs"
else
LogText "Result: qdaemon daemon not running"
Display --indent 2 --text "- Checking qdaemon daemon" --result "${STATUS_NOT_RUNNING}" --color WHITE
fi
fi
fi
#
#################################################################################
#
# Test : PRNT-2420
# Description : Checking old print jobs
Register --test-no PRNT-2420 --os AIX --weight L --network NO --category security --description "Checking old print jobs"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: Checking old print jobs"
DirectoryExists /var/spool/lpd/qdir
if [ ${DIRECTORY_FOUND} -eq 1 ]; then
FIND=$(find /var/spool/lpd/qdir -type f -mtime +1 2> /dev/null | ${SEDBINARY} 's/ /!space!/g')
if [ ! "${FIND}" = "" ]; then
N=0
for I in ${FIND}; do
FILE=$(echo ${I} | ${SEDBINARY} 's/!space!/ /g')
LogText "Found old print job: ${FILE}"
N=$((N + 1))
done
LogText "Result: Found ${N} old print jobs in /var/spool/lpd/qdir"
Display --indent 4 --text "- Checking old print jobs" --result "${STATUS_FOUND}" --color YELLOW
ReportSuggestion ${TEST_NO} "Check old print jobs in /var/spool/lpd/qdir to prevent new jobs from being processed"
LogText "Risk: Failed or defunct print jobs can occupy a lot of space and in some cases, prevent new jobs from being processed"
else
LogText "Result: Old print jobs not found in /var/spool/lpd/qdir"
Display --indent 4 --text "- Checking old print jobs" --result "${STATUS_NONE}" --color GREEN
fi
fi
fi
#
#################################################################################
#
Report "printing_daemon=${PRINTING_DAEMON}"
WaitForKeyPress
#
#================================================================================
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
|