[Full-Disclosure] DoS - Polycom MGC 25 Control Port

From: identat_private
Date: Sat Jul 12 2003 - 13:31:27 PDT

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     ------------------------------------------------------------------
             - EXPL-A-2003-014 exploitlabs.com Advisory 014
     ------------------------------------------------------------------
                            -= Polycom MGC25 =- 
    
     
    
    
    Nutcase
    July 12, 2003 
    
    
    Vunerability(s):
     ----------------
    Denial of Service 
    
    
    Product:
     --------
    Polycom MGC 25  -  MCU Ver: 5.51.21
    Polycom MGC 25  -  MCMS Ver : 5.51.211 ( current )
    Polycom MGC 50  -  unverified
    Polycom MGC 100 -  unverified 
    
    
    Description of product:
     -----------------------
    "The MGC 25 is a robust Multipoint Video and Audio bridge
    for organizations with a distributed network, a centralized network or both.
    All three platforms ( MGC-25 MGC-50 MGC-100 )
    use the same software, share a common feature set and support
    the same scheduling and management solutions." 
    
    http://www.polycom.com/common/flash/individual_tours/I_MGC25.htm
    http://www.polycom.com/common/pw_item_show_doc/0,1449,853,00.pdf 
    
     
    
    VUNERABILITY / EXPLOIT
    ====================== 
    
    tested on Windows XP / 2k 
    
    issuing... 
    
    blast 10.10.10.10 5003 600 680 /t 7000 /d 300 /b user 
    
    ( blast is a stress tool from http://www.foundstone.com/Blast ) 
    
    completly crashes the control port on the remote host 
    
    Box must be rebooted to return remote management functionality 
    
    
    Local:
     ------
    yes 
    
    Remote:
     -------
    yes 
    
    
    Vendor Fix:
     -----------
    No fix on 0day
    Vendor has not responded 
    
    
    Vendor Contact:
     ---------------
    Concurrent with this advisory
    securitycenterat_private 
    
    
    Credits:
     --------
    Nutcase
    id3ntat_private
    http://exploitlabs.com 
    
    
    exploitlabs.com and nothackers.org thanks Nutcase for his contribution 
    
    
    _______________________________________________
    Full-Disclosure - We believe in it.
    Charter: http://lists.netsys.com/full-disclosure-charter.html
    



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