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Re: segfault issue

From: cihan.ayyildiz () securitas com tr
Date: Mon, 7 Mar 2011 03:04:01 +0200
Hi Again ;

Yes,  my shared VRT rules are correct (2.9.0.3 also im a subscriber) And i
compiled them with my own parameters (because of gentoo path difference)
then dump with my conf successfully.

dump printout below

Running in Rule Dump mode

        --== Initializing Snort ==--
Initializing Output Plugins!
Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file "/etc/snort/snort.conf"
PortVar 'HTTP_PORTS' defined :  [ 80 311 591 593 901 1220 1414 1830 2301
2381 2809 3128 3702 5250 7001 7777 7779 8000 8008 8028 8080 8088 8118 8123
8180 8243 8280 8888 9090:9091 9443 9999 11371 ]
PortVar 'SHELLCODE_PORTS' defined :  [ 0:79 81:65535 ]
PortVar 'ORACLE_PORTS' defined :  [ 1024:65535 ]
PortVar 'SSH_PORTS' defined :  [ 22 ]
WARNING /etc/snort/snort.conf(88) Adapter is in Passive Mode. Hence
switching policy mode to tap.
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/lib64/snort_dynamicengine/libsf_engine.so...
done
Loading all dynamic detection libs from /usr/lib64/snort_dynamicrules...
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/web-misc.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/multimedia.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/smtp.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/snmp.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/exploit.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/misc.so... done
  Loading dynamic detection library /usr/lib64/snort_dynamicrules/dos.so...
done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/web-client.so... done
  Loading dynamic detection library /usr/lib64/snort_dynamicrules/p2p.so...
done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/netbios.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/nntp.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/bad-traffic.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/imap.so... done
  Loading dynamic detection
library /usr/lib64/snort_dynamicrules/chat.so... done
  Finished Loading all dynamic detection libs
from /usr/lib64/snort_dynamicrules
Loading all dynamic preprocessor libs
from /usr/lib64/snort_dynamicpreprocessor...
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_smtp_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_ssh_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_dce2_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_dns_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_ssl_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_sdf_preproc.so... done
  Loading dynamic preprocessor
library /usr/lib64/snort_dynamicpreprocessor/libsf_ftptelnet_preproc.so...
done
  Finished Loading all dynamic preprocessor libs
from /usr/lib64/snort_dynamicpreprocessor
Log directory = /var/log/snort
WARNING: ip4 normalizations disabled because not inlineWARNING: tcp
normalizations disabled because not inlineWARNING: icmp4 normalizations
disabled because not inlineFrag3 global config:
    Max frags: 65536
    Fragment memory cap: 4194304 bytes
Frag3 engine config:
    Target-based policy: WINDOWS
    Fragment timeout: 180 seconds
    Fragment min_ttl:   1
    Fragment Problems: 1
    Overlap Limit:     10
    Min fragment Length:     100
Stream5 global config:
    Track TCP sessions: ACTIVE
    Max TCP sessions: 1048576
    Memcap (for reassembly packet storage): 1073741824
    Track UDP sessions: ACTIVE
    Max UDP sessions: 131072
    Track ICMP sessions: INACTIVE
    Log info if session memory consumption exceeds 1048576
    Send up to 0 active responses
Stream5 TCP Policy config:
    Reassembly Policy: WINDOWS
    Timeout: 86400 seconds
    Limit on TCP Overlaps: 255
    Options:
        Require 3-Way Handshake: YES
        3-Way Handshake Timeout: 8600
        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)
      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)
      311 client (Footprint) server (Footprint)
Stream5 UDP Policy config:
    Timeout: 180 seconds
PerfMonitor config:
    Time:           300 seconds
    Flow Stats:     INACTIVE
    Flow IP Stats:  INACTIVE
    Event Stats:    INACTIVE
    Max Perf Stats: INACTIVE
    Console Mode:   INACTIVE
    File Mode:      /etc/snort/snort.stats
    SnortFile Mode: INACTIVE
    Packet Count:   10000
    Dump Summary:   No
    Max file size:  2147483648
HttpInspect Config:
    GLOBAL CONFIG
      Max Pipeline Requests:    0
      Inspection Type:          STATELESS
      Detect Proxy Usage:       NO
      IIS Unicode Map Filename: /etc/snort/unicode.map
      IIS Unicode Map Codepage: 1252
      Max Gzip Memory: 838860
      Max Gzip Sessions: 20
      Gzip Compress Depth: 20480
      Gzip Decompress Depth: 20480
    DEFAULT SERVER CONFIG:
      Server profile: All
      Ports: 80 311 591 593 901 1220 1414 1830 2301 2381 2809 3128 3702
5250 7001 7777 7779 8000 8008 8028 8080 8088 8118 8123 8180 8243 8280 8888
9090 9091 9443 9999 11371
      Server Flow Depth: 0
      Client Flow Depth: 0
      Max Chunk Length: 500000
      Max Header Field Length: 750
      Max Number Header Fields: 100
      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 HTTP Cookies: NO
      Enable XFF and True Client IP: 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
      Base36: OFF
      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
Portscan Detection Config:
    Detect Protocols:  TCP UDP ICMP IP
    Detect Scan Type:  portscan portsweep decoy_portscan
distributed_portscan
    Sensitivity Level: Medium
    Memcap (in bytes): 10000000
    Number of Nodes:   31347
Dumping dynamic rules...
Dumping dynamic rules for Library chat 1.0.1
Dumping dynamic rules for Library imap 1.0.1
Dumping dynamic rules for Library bad-traffic 1.0.1
Dumping dynamic rules for Library nntp 1.0.1
Dumping dynamic rules for Library netbios 1.0.1
Dumping dynamic rules for Library p2p 1.0.1
Dumping dynamic rules for Library web-client 1.0.1
Dumping dynamic rules for Library dos 1.0.1
Dumping dynamic rules for Library misc 1.0.1
Dumping dynamic rules for Library exploit 1.0.1
Dumping dynamic rules for Library snmp 1.0.1
Dumping dynamic rules for Library smtp 1.0.1
Dumping dynamic rules for Library multimedia 1.0.1
Dumping dynamic rules for Library web-misc 1.0.1
  Finished dumping dynamic rules.
Snort exiting

Cihan AYYILDIZ
Bilgi İşlem Uzmanı  /  IT Specialist
Sistem & Ağ Yöneticisi  /  System & Network Administrator

Securitas Güvenlik Hizmetleri / Securitas Security Services Turkey
E-mail : cihan.ayyildiz () securitas com tr
Ofis / Office Phone : +90.312.473.59.90 / 114
Cep / Mobile : +90.532.450.18.13        VPN : 2225

if you learn Red Hat, you'll know Red Hat, but if you learn Slackware,
you'll know Linux



From:   Joel Esler <jesler () sourcefire com>
To:     cihan.ayyildiz () securitas com tr
Cc:     snort-users () lists sourceforge net
Date:   07.03.2011 02:54
Subject:        Re: [Snort-users] segfault issue



We received your bug report as well.  Thank you.

Are you, by chance, using Shared Object rules from the VRT?  And if you are
using Shared Object rules, are you sure you are using the correct ones for
2.9.0.3?

If not, then we'll need a good backtrace of the segfault.

Check out docs/BUGS in the Snort tarball in order to get us a core from
Snort.

Joel

2011/3/6 <cihan.ayyildiz () securitas com tr>

      Hi All ;

      I have an error like below and crashed the snort....

      kernel: snort[1191]: segfault at 1065a9d32 ip 00007eff29836143 sp
      00007fff62456a08 error 6 in libc-2.11.2.so[7eff297b5000+150000]


      my os

      Linux  2.6.36-gentoo-r5 #1 SMP Fri Mar 4 20:14:56 EET 2011 x86_64
      Intel(R)
      Xeon(R) CPU E5620 @ 2.40GHz GenuineIntel GNU/Linux

      my version


        ,,_     -*> Snort! <*-
       o"  )~   Version 2.9.0.3 (Build 98)
        ''''    By Martin Roesch & The Snort Team:
      http://www.snort.org/snort/snort-team
                Copyright (C) 1998-2010 Sourcefire, Inc., et al.
                Using libpcap version 1.1.1
                Using PCRE version: 7.9 2009-04-11
                Using ZLIB version: 1.2.3

      i have emerged snort from portage tree

      which is that

      [ebuild   R   ] net-analyzer/snort-2.9.0.3
      USE="decoder-preprocessor-rules
      dynamicplugin mysql threads zlib -active-response* -aruba -debug
      -flexresp3
      -gre -inline-init-failopen* -ipv6 -linux-smp-stats -mpls -normalizer*
      -odbc
      -perfprofiling -postgres -ppm -prelude -react* -reload-error-restart
      (-selinux) -static -targetbased" 0 kB


      im using in inline mod daq with NFQ

      regards.


      Cihan AYYILDIZ
      Bilgi İşlem Uzmanı  /  IT Specialist
      Sistem & Ağ Yöneticisi  /  System & Network Administrator

      Securitas Güvenlik Hizmetleri / Securitas Security Services Turkey
      E-mail : cihan.ayyildiz () securitas com tr
      Ofis / Office Phone : +90.312.473.59.90 / 114
      Cep / Mobile : +90.532.450.18.13        VPN : 2225

      if you learn Red Hat, you'll know Red Hat, but if you learn
      Slackware,
      you'll know Linux


      ------------------------------------------------------------------------------

      What You Don't Know About Data Connectivity CAN Hurt You
      This paper provides an overview of data connectivity, details
      its effect on application quality, and explores various alternative
      solutions. http://p.sf.net/sfu/progress-d2d
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--
Joel Esler | http://blog.snort.org | http://vrt-blog.snort.org |
http://blog.clamav.net



------------------------------------------------------------------------------
What You Don't Know About Data Connectivity CAN Hurt You
This paper provides an overview of data connectivity, details
its effect on application quality, and explores various alternative
solutions. http://p.sf.net/sfu/progress-d2d
_______________________________________________
Snort-users mailing list
Snort-users () lists sourceforge net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users
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