Re: CISCO as5350 crashes with nmap connect scan

From: Thomas Munn (munnat_private)
Date: Tue Oct 29 2002 - 12:11:09 PST

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    >Received: (qmail 7861 invoked from network); 28 Oct
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    >
    >I have managed to "reduplicate" at least five times the
    >following scenario with a cisco as5250, with firmwrare
    >12.2 (11t) release firmware of cisco:
    >
    >nmap -dinsane -p 1-65535 ip.of.as5350 This causes a
    >"hard" lockup, and the device must be powered off in
    >order to have functionality restored to it.
    >
    >Mentioned to PSIRT at cisco, they didn't do anything.
    >
    >Sincerely,
    >
    >Thomas J. Munn
    >
    
    It seems to be the -p 1-65535 that causes a disconnect
    on the unit (via ssh) but doesn't crash it, the
    -dinsane part seems to lock it.A gentlemen emailed me
    that there is a known "ssh" bug, and yes, ssh was
    enabled.  When just using nmap -sT -p 1-65535 ssh
    disconnects me, but doesn't kill the box.
    
    List of ports, quite fascinating by the way!
    22/tcp     open        ssh                     
    23/tcp     open        telnet                  
    111/tcp    filtered    sunrpc                  
    1720/tcp   open        H.323/Q.931             
    2216/tcp   open        unknown                 
    2217/tcp   open        unknown                 
    2218/tcp   open        unknown                 
    2219/tcp   open        unknown                 
    2220/tcp   open        unknown                 
    2221/tcp   open        unknown                 
    2222/tcp   open        unknown                 
    2223/tcp   open        unknown                 
    2224/tcp   open        unknown                 
    2225/tcp   open        unknown                 
    2226/tcp   open        unknown                 
    2227/tcp   open        unknown                 
    2228/tcp   open        unknown                 
    2229/tcp   open        unknown                 
    2230/tcp   open        unknown                 
    2231/tcp   open        unknown                 
    2232/tcp   open        ivs-video               
    2233/tcp   open        unknown                 
    2234/tcp   open        unknown                 
    2235/tcp   open        unknown                 
    2236/tcp   open        unknown                 
    2237/tcp   open        unknown                 
    2238/tcp   open        unknown                 
    2239/tcp   open        unknown                 
    2240/tcp   open        unknown                 
    2241/tcp   open        ivsd                    
    2242/tcp   open        unknown                 
    2243/tcp   open        unknown                 
    2244/tcp   open        unknown                 
    2245/tcp   open        unknown                 
    2246/tcp   open        unknown                 
    2247/tcp   open        unknown                 
    2248/tcp   open        unknown                 
    2249/tcp   open        unknown                 
    2250/tcp   open        unknown                 
    2251/tcp   open        unknown                 
    2252/tcp   open        unknown                 
    2253/tcp   open        unknown                 
    2254/tcp   open        unknown                 
    2255/tcp   open        unknown                 
    2256/tcp   open        unknown                 
    2257/tcp   open        unknown                 
    2258/tcp   open        unknown                 
    2259/tcp 2260/tcp   open        unknown                 
    2261/tcp   open        unknown                 
    2262/tcp   open        unknown                 
    2263/tcp   open        unknown                 
    2264/tcp   open        unknown                 
    2265/tcp   open        unknown                 
    2266/tcp   open        unknown                 
    2267/tcp   open        unknown                 
    2268/tcp   open        unknown                 
    2269/tcp   open        unknown                 
    2270/tcp   open        unknown                 
    2271/tcp   open        unknown                 
    2272/tcp   open        unknown                 
    2273/tcp   open        unknown                 
    2274/tcp   open        unknown                 
    2275/tcp   open        unknown                 
    3001/tcp   open        nessusd                 
    4216/tcp   open        unknown                 
    4217/tcp   open        unknown                 
    4218/tcp   open        unknown                 
    4219/tcp   open        unknown                 
    4220/tcp   open        unknown                 
    4221/tcp   open        unknown                 
    4222/tcp   open        unknown                 
    4223/tcp   open        unknown                 
    4224/tcp   open        unknown                 
    4225/tcp   open        unknown                 
    4226/tcp   open        unknown                 
    4227/tcp   open        unknown                 
    4228/tcp   open        unknown                 
    4229/tcp   open        unknown                 
    4230/tcp   open        unknown                 
    4231/tcp   open        unknown                 
    4232/tcp   open        unknown                 
    4233/tcp   open        unknown                 
    4234/tcp   open        unknown                 
    4235/tcp   open        unknown                 
    4236/tcp   open        unknown                 
    4237/tcp   open        unknown                 
    4238/tcp   open        unknown                 
    4239/tcp   open        unknown                 
    4240/tcp   open        unknown                 
    4241/tcp   open        unknown                 
    4242/tcp   open        unknown                 
    4243/tcp   open        unknown                 
    4244/tcp   open        unknown                 
    4245/tcp   open        unknown                 
    4246/tcp   open        unknown                 
    4247/tcp   open        unknown                 
    4248/tcp   open        unknown                 
    4249/tcp   open        unknown                 
    4250/tcp   open        unknown                 
    4251/tcp   open        unknown                 
    4252/tcp   open        unknown                 
    4253/tcp   open        unknown                 
    4254/tcp   open        unknown                 
    4255/tcp   open        unknnown
     
    Goes up far more
    



    This archive was generated by hypermail 2b30 : Tue Oct 29 2002 - 14:09:33 PST