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permission issue
From: Balla István <balla.bmf () gmail com>
Date: Sat, 6 Apr 2013 21:48:46 +0200

Hi Members,

I'm facing problems when I run snort with

sudo /usr/local/snort/bin/snort -u snort -g snort -c
/usr/local/snort/etc/snort.conf -i eth1

command. I followed the
http://www.snort.org/assets/158/snortinstallguide293.pdf guide and it
seemed to work but I got the error message at the end:

ERROR: spo_unified2.c(321) Could not open
/var/log/snort/snort.u2.1365276051: Permission denied
Fatal Error, Quitting..

There is no traffic yet on eth1 but I think this issue is related to the
log somehow.
I attach below the result of the firstly mentioned command.

Thanks for your advise.

----------------------------------------------------------------------------------------------
sudo /usr/local/snort/bin/snort -u snort -g snort -c
/usr/local/snort/etc/snort.conf -i eth1

Running in IDS mode

        --== Initializing Snort ==--
Initializing Output Plugins!
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file "/usr/local/snort/etc/snort.conf"
PortVar 'HTTP_PORTS' defined :  [ 80:81 311 383 591 593 901 1220 1414 1741
1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988 7000:7001 7144:7145
7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090 8118 8123 8180:8181
8243 8280 8300 8800 8888 8899 9000 9060 9080 9090:9091 9443 9999 11371
34443:34444 41080 50002 55555 ]
PortVar 'SHELLCODE_PORTS' defined :  [ 0:79 81:65535 ]
PortVar 'ORACLE_PORTS' defined :  [ 1024:65535 ]
PortVar 'SSH_PORTS' defined :  [ 22 ]
PortVar 'FTP_PORTS' defined :  [ 21 2100 3535 ]
PortVar 'SIP_PORTS' defined :  [ 5060:5061 5600 ]
PortVar 'FILE_DATA_PORTS' defined :  [ 80:81 110 143 311 383 591 593 901
1220 1414 1741 1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988
7000:7001 7144:7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090
8118 8123 8180:8181 8243 8280 8300 8800 8888 8899 9000 9060 9080 9090:9091
9443 9999 11371 34443:34444 41080 50002 55555 ]
PortVar 'GTP_PORTS' defined :  [ 2123 2152 3386 ]
Detection:
   Search-Method = AC-Full-Q
    Split Any/Any group = enabled
    Search-Method-Optimizations = enabled
    Maximum pattern length = 20
Tagged Packet Limit: 256
Loading dynamic engine
/usr/local/snort/lib/snort_dynamicengine/libsf_engine.so... done
Loading all dynamic detection libs from
/usr/local/snort/lib/snort_dynamicrules...
WARNING: No dynamic libraries found in directory
/usr/local/snort/lib/snort_dynamicrules.
  Finished Loading all dynamic detection libs from
/usr/local/snort/lib/snort_dynamicrules
Loading all dynamic preprocessor libs from
/usr/local/snort/lib/snort_dynamicpreprocessor/...
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_reputation_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ssl_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dce2_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_smtp_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_sip_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_pop_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ssh_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_sdf_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_modbus_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_ftptelnet_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_gtp_preproc.so... done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dnp3_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_imap_preproc.so...
done
  Loading dynamic preprocessor library
/usr/local/snort/lib/snort_dynamicpreprocessor//libsf_dns_preproc.so... done
  Finished Loading all dynamic preprocessor libs from
/usr/local/snort/lib/snort_dynamicpreprocessor/
Log directory = /var/log/snort
WARNING: ip4 normalizations disabled because not inline.
WARNING: tcp normalizations disabled because not inline.
WARNING: icmp4 normalizations disabled because not inline.
WARNING: ip6 normalizations disabled because not inline.
WARNING: icmp6 normalizations disabled because not inline.
Frag3 global config:
    Max frags: 65536
    Fragment memory cap: 4194304 bytes
Frag3 engine config:
    Bound Address: default
    Target-based policy: WINDOWS
    Fragment timeout: 180 seconds
    Fragment min_ttl:   1
    Fragment Anomalies: Alert
    Overlap Limit:     10
    Min fragment Length:     100
Stream5 global config:
    Track TCP sessions: ACTIVE
    Max TCP sessions: 262144
    Memcap (for reassembly packet storage): 8388608
    Track UDP sessions: ACTIVE
    Max UDP sessions: 131072
    Track ICMP sessions: INACTIVE
    Track IP sessions: INACTIVE
    Log info if session memory consumption exceeds 1048576
    Send up to 2 active responses
    Wait at least 5 seconds between responses
    Protocol Aware Flushing: ACTIVE
        Maximum Flush Point: 16000
Stream5 TCP Policy config:
    Bound Address: default
    Reassembly Policy: WINDOWS
    Timeout: 180 seconds
    Limit on TCP Overlaps: 10
    Maximum number of bytes to queue per session: 1048576
    Maximum number of segs to queue per session: 2621
    Options:
        Require 3-Way Handshake: YES
        3-Way Handshake Timeout: 180
        Detect Anomalies: YES
    Reassembly Ports:
      21 client (Footprint)
      22 client (Footprint)
      23 client (Footprint)
      25 client (Footprint)
      42 client (Footprint)
      53 client (Footprint)
      79 client (Footprint)
      80 client (Footprint) server (Footprint)
      81 client (Footprint) server (Footprint)
      109 client (Footprint)
      110 client (Footprint)
      111 client (Footprint)
      113 client (Footprint)
      119 client (Footprint)
      135 client (Footprint)
      136 client (Footprint)
      137 client (Footprint)
      139 client (Footprint)
      143 client (Footprint)
      161 client (Footprint)
      additional ports configured but not printed.
Stream5 UDP Policy config:
    Timeout: 180 seconds
HttpInspect Config:
    GLOBAL CONFIG
      Max Pipeline Requests:    0
      Inspection Type:          STATELESS
      Detect Proxy Usage:       NO
      IIS Unicode Map Filename: /usr/local/snort/etc/unicode.map
      IIS Unicode Map Codepage: 1252
      Memcap used for logging URI and Hostname: 150994944
      Max Gzip Memory: 838860
      Max Gzip Sessions: 9532
      Gzip Compress Depth: 65535
      Gzip Decompress Depth: 65535
    DEFAULT SERVER CONFIG:
      Server profile: All
      Ports (PAF): 80 81 311 383 591 593 901 1220 1414 1741 1830 2301 2381
2809 3037 3128 3702 4343 4848 5250 6988 7000 7001 7144 7145 7510 7777 7779
8000 8008 8014 8028 8080 8085 8088 8090 8118 8123 8180 8181 8243 8280 8300
8800 8888 8899 9000 9060 9080 9090 9091 9443 9999 11371 34443 34444 41080
50002 55555
      Server Flow Depth: 0
      Client Flow Depth: 0
      Max Chunk Length: 500000
      Small Chunk Length Evasion: chunk size <= 10, threshold >= 5 times
      Max Header Field Length: 750
      Max Number Header Fields: 100
      Max Number of WhiteSpaces allowed with header folding: 200
      Inspect Pipeline Requests: YES
      URI Discovery Strict Mode: NO
      Allow Proxy Usage: NO
      Disable Alerting: NO
      Oversize Dir Length: 500
      Only inspect URI: NO
      Normalize HTTP Headers: NO
      Inspect HTTP Cookies: YES
      Inspect HTTP Responses: YES
      Extract Gzip from responses: YES
      Unlimited decompression of gzip data from responses: YES
      Normalize Javascripts in HTTP Responses: YES
      Max Number of WhiteSpaces allowed with Javascript Obfuscation in HTTP
responses: 200
      Normalize HTTP Cookies: NO
      Enable XFF and True Client IP: NO
      Log HTTP URI data: NO
      Log HTTP Hostname data: NO
      Extended ASCII code support in URI: NO
      Ascii: YES alert: NO
      Double Decoding: YES alert: NO
      %U Encoding: YES alert: YES
      Bare Byte: YES alert: NO
      UTF 8: YES alert: NO
      IIS Unicode: YES alert: NO
      Multiple Slash: YES alert: NO
      IIS Backslash: YES alert: NO
      Directory Traversal: YES alert: NO
      Web Root Traversal: YES alert: NO
      Apache WhiteSpace: YES alert: NO
      IIS Delimiter: YES alert: NO
      IIS Unicode Map: GLOBAL IIS UNICODE MAP CONFIG
      Non-RFC Compliant Characters: 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07
      Whitespace Characters: 0x09 0x0b 0x0c 0x0d
rpc_decode arguments:
    Ports to decode RPC on: 111 32770 32771 32772 32773 32774 32775 32776
32777 32778 32779
    alert_fragments: INACTIVE
    alert_large_fragments: INACTIVE
    alert_incomplete: INACTIVE
    alert_multiple_requests: INACTIVE
FTPTelnet Config:
    GLOBAL CONFIG
      Inspection Type: stateful
      Check for Encrypted Traffic: YES alert: NO
      Continue to check encrypted data: YES
    TELNET CONFIG:
      Ports: 23
      Are You There Threshold: 20
      Normalize: YES
      Detect Anomalies: YES
    FTP CONFIG:
      FTP Server: default
        Ports (PAF): 21 2100 3535
        Check for Telnet Cmds: YES alert: YES
        Ignore Telnet Cmd Operations: YES alert: YES
        Identify open data channels: NO
      FTP Client: default
        Check for Bounce Attacks: YES alert: YES
        Check for Telnet Cmds: YES alert: YES
        Ignore Telnet Cmd Operations: YES alert: YES
        Max Response Length: 256
SMTP Config:
    Ports: 25 465 587 691
    Inspection Type: Stateful
    Normalize: ATRN AUTH BDAT DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY
EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND STARTTLS
SOML TICK TIME TURN TURNME VERB VRFY X-EXPS XADR XAUTH XCIR XEXCH50 XGEN
XLICENSE X-LINK2STATE XQUE XSTA XTRN XUSR CHUNKING X-ADAT X-DRCP X-ERCP
X-EXCH50
    Ignore Data: No
    Ignore TLS Data: No
    Ignore SMTP Alerts: No
    Max Command Line Length: 512
    Max Specific Command Line Length:
       ATRN:255 AUTH:246 BDAT:255 DATA:246 DEBUG:255
       EHLO:500 EMAL:255 ESAM:255 ESND:255 ESOM:255
       ETRN:246 EVFY:255 EXPN:255 HELO:500 HELP:500
       IDENT:255 MAIL:260 NOOP:255 ONEX:246 QUEU:246
       QUIT:246 RCPT:300 RSET:246 SAML:246 SEND:246
       SIZE:255 STARTTLS:246 SOML:246 TICK:246 TIME:246
       TURN:246 TURNME:246 VERB:246 VRFY:255 X-EXPS:246
       XADR:246 XAUTH:246 XCIR:246 XEXCH50:246 XGEN:246
       XLICENSE:246 X-LINK2STATE:246 XQUE:246 XSTA:246 XTRN:246
       XUSR:246
    Max Header Line Length: 1000
    Max Response Line Length: 512
    X-Link2State Alert: Yes
    Drop on X-Link2State Alert: No
    Alert on commands: None
    Alert on unknown commands: No
    SMTP Memcap: 838860
    MIME Max Mem: 838860
    Base64 Decoding: Enabled
    Base64 Decoding Depth: Unlimited
    Quoted-Printable Decoding: Enabled
    Quoted-Printable Decoding Depth: Unlimited
    Unix-to-Unix Decoding: Enabled
    Unix-to-Unix Decoding Depth: Unlimited
    Non-Encoded MIME attachment Extraction: Enabled
    Non-Encoded MIME attachment Extraction Depth: Unlimited
    Log Attachment filename: Enabled
    Log MAIL FROM Address: Enabled
    Log RCPT TO Addresses: Enabled
    Log Email Headers: Enabled
    Email Hdrs Log Depth: 1464
SSH config:
    Autodetection: ENABLED
    Challenge-Response Overflow Alert: ENABLED
    SSH1 CRC32 Alert: ENABLED
    Server Version String Overflow Alert: ENABLED
    Protocol Mismatch Alert: ENABLED
    Bad Message Direction Alert: DISABLED
    Bad Payload Size Alert: DISABLED
    Unrecognized Version Alert: DISABLED
    Max Encrypted Packets: 20
    Max Server Version String Length: 100
    MaxClientBytes: 19600 (Default)
    Ports:
    22
DCE/RPC 2 Preprocessor Configuration
  Global Configuration
    DCE/RPC Defragmentation: Enabled
    Memcap: 102400 KB
    Events: co
    SMB Fingerprint policy: Disabled
  Server Default Configuration
    Policy: WinXP
    Detect ports (PAF)
      SMB: 139 445
      TCP: 135
      UDP: 135
      RPC over HTTP server: 593
      RPC over HTTP proxy: None
    Autodetect ports (PAF)
      SMB: None
      TCP: 1025-65535
      UDP: 1025-65535
      RPC over HTTP server: 1025-65535
      RPC over HTTP proxy: None
    Invalid SMB shares: C$ D$ ADMIN$
    Maximum SMB command chaining: 3 commands
DNS config:
    DNS Client rdata txt Overflow Alert: ACTIVE
    Obsolete DNS RR Types Alert: INACTIVE
    Experimental DNS RR Types Alert: INACTIVE
    Ports: 53
SSLPP config:
    Encrypted packets: not inspected
    Ports:
      443      465      563      636      989
      992      993      994      995     7801
     7802     7900     7901     7902     7903
     7904     7905     7906     7907     7908
     7909     7910     7911     7912     7913
     7914     7915     7916     7917     7918
     7919     7920
    Server side data is trusted
Sensitive Data preprocessor config:
    Global Alert Threshold: 25
    Masked Output: DISABLED
SIP config:
    Max number of sessions: 40000
    Max number of dialogs in a session: 4 (Default)
    Status: ENABLED
    Ignore media channel: DISABLED
    Max URI length: 512
    Max Call ID length: 80
    Max Request name length: 20 (Default)
    Max From length: 256 (Default)
    Max To length: 256 (Default)
    Max Via length: 1024 (Default)
    Max Contact length: 512
    Max Content length: 2048
    Ports:
    5060    5061    5600
    Methods:
      invite cancel ack bye register options refer subscribe update join
info message notify benotify do qauth sprack publish service unsubscribe
prack
IMAP Config:
    Ports: 143
    IMAP Memcap: 838860
    Base64 Decoding: Enabled
    Base64 Decoding Depth: Unlimited
    Quoted-Printable Decoding: Enabled
    Quoted-Printable Decoding Depth: Unlimited
    Unix-to-Unix Decoding: Enabled
    Unix-to-Unix Decoding Depth: Unlimited
    Non-Encoded MIME attachment Extraction: Enabled
    Non-Encoded MIME attachment Extraction Depth: Unlimited
POP Config:
    Ports: 110
    POP Memcap: 838860
    Base64 Decoding: Enabled
    Base64 Decoding Depth: Unlimited
    Quoted-Printable Decoding: Enabled
    Quoted-Printable Decoding Depth: Unlimited
    Unix-to-Unix Decoding: Enabled
    Unix-to-Unix Decoding Depth: Unlimited
    Non-Encoded MIME attachment Extraction: Enabled
    Non-Encoded MIME attachment Extraction Depth: Unlimited
Modbus config:
    Ports:
    502
DNP3 config:
    Memcap: 262144
    Check Link-Layer CRCs: ENABLED
    Ports:
    20000
Reputation config:
WARNING: Can't find any whitelist/blacklist entries. Reputation
Preprocessor disabled.

+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
3565 Snort rules read
    3565 detection rules
    0 decoder rules
    0 preprocessor rules
3565 Option Chains linked into 187 Chain Headers
0 Dynamic rules
+++++++++++++++++++++++++++++++++++++++++++++++++++

+-------------------[Rule Port
Counts]---------------------------------------
|             tcp     udp    icmp      ip
|     src    1478       5       0       0
|     dst    1737     200       0       0
|     any     126      44      28      26
|      nc      52      12       1       0
|     s+d       3       1       0       0
+----------------------------------------------------------------------------

+-----------------------[detection-filter-config]------------------------------
| memory-cap : 1048576 bytes
+-----------------------[detection-filter-rules]-------------------------------
-------------------------------------------------------------------------------

+-----------------------[rate-filter-config]-----------------------------------
| memory-cap : 1048576 bytes
+-----------------------[rate-filter-rules]------------------------------------
| none
-------------------------------------------------------------------------------

+-----------------------[event-filter-config]----------------------------------
| memory-cap : 1048576 bytes
+-----------------------[event-filter-global]----------------------------------
+-----------------------[event-filter-local]-----------------------------------
| none
+-----------------------[suppression]------------------------------------------
| none
-------------------------------------------------------------------------------
Rule application order:
activation->dynamic->pass->drop->sdrop->reject->alert->log
Verifying Preprocessor Configurations!
ICMP tracking disabled, no ICMP sessions allocated
IP tracking disabled, no IP sessions allocated
WARNING: flowbits key 'file.xlsx' is set but not ever checked.
WARNING: flowbits key 'file.maki' is set but not ever checked.
WARNING: flowbits key 'file.rar' is set but not ever checked.
WARNING: flowbits key 'file.cov' is set but not ever checked.
WARNING: flowbits key 'file.ppsx' is set but not ever checked.
WARNING: flowbits key 'file.wmp_playlist' is set but not ever checked.
WARNING: flowbits key 'sybase.tds.connection' is set but not ever checked.
WARNING: flowbits key 'file.vqf' is set but not ever checked.
WARNING: flowbits key 'file.bzip' is checked but not ever set.
WARNING: flowbits key 'file.emf' is set but not ever checked.
WARNING: flowbits key 'file.wma' is set but not ever checked.
WARNING: flowbits key 'file.swf.cff' is set but not ever checked.
WARNING: flowbits key 'file.docm' is set but not ever checked.
WARNING: flowbits key 'smb.trans2.fileinfo' is set but not ever checked.
WARNING: flowbits key 'flags.fin' is set but not ever checked.
WARNING: flowbits key 'acunetix.scanner' is set but not ever checked.
WARNING: flowbits key 'file.tiff.big' is set but not ever checked.
WARNING: flowbits key 'file.mpeg' is checked but not ever set.
WARNING: flowbits key 'file.pecompact' is set but not ever checked.
WARNING: flowbits key 'smb.smi' is set but not ever checked.
WARNING: flowbits key 'ms.packager' is set but not ever checked.
130 out of 1024 flowbits in use.

[ Port Based Pattern Matching Memory ]
+- [ Aho-Corasick Summary ] -------------------------------------
| Storage Format    : Full-Q
| Finite Automaton  : DFA
| Alphabet Size     : 256 Chars
| Sizeof State      : Variable (1,2,4 bytes)
| Instances         : 144
|     1 byte states : 131
|     2 byte states : 13
|     4 byte states : 0
| Characters        : 60767
| States            : 47626
| Transitions       : 4423222
| State Density     : 36.3%
| Patterns          : 3667
| Match States      : 3540
| Memory (MB)       : 23.68
|   Patterns        : 0.28
|   Match Lists     : 0.43
|   DFA
|     1 byte states : 0.80
|     2 byte states : 22.03
|     4 byte states : 0.00
+----------------------------------------------------------------
[ Number of patterns truncated to 20 bytes: 391 ]
pcap DAQ configured to passive.
Acquiring network traffic from "eth1".
Reload thread starting...
Reload thread started, thread 0xa688bb40 (4951)
Decoding Ethernet
Set gid to 1001
Set uid to 1001
ERROR: spo_unified2.c(321) Could not open
/var/log/snort/snort.u2.1365276051: Permission denied
Fatal Error, Quitting..
------------------------------------------------------------------------------
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