The debian-private mailing list leak, part 1. Volunteers have complained about Blackmail. Lynchings. Character assassination. Defamation. Cyberbullying. Volunteers who gave many years of their lives are picked out at random for cruel social experiments. The former DPL's girlfriend Molly de Blanc is given volunteers to experiment on for her crazy talks. These volunteers never consented to be used like lab rats. We don't either. debian-private can no longer be a safe space for the cabal. Let these monsters have nowhere to hide. Volunteers are not disposable. We stand with the victims.

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Re: DOS attack: Linux inetd.. (fwd)



  The more I look at this report, the more  becomes.  Anyone thinks that 
 this report makes any sense?

    
  * How can it send the first RST without piggy-banking an ACK ?
    If it is a bug in the kernel, what this has to do with ports
    13 and 37 ?
  
  * Also, sending an RST before the "established"
    state is, I assume, a form of "kamikaze" packet, is it not?
    Therefore, it is a bug in the kernel (this time on the receiving host).
    But why does the kernel break only for these ports? Strange.


  Any interest? 
  

 

> To: BUGTRAQ@NETSPACE.ORG
> Subject: Linux inetd..
> 
> Description:
> 
>   I've found that inetd on (*atleast*) Debian distribution of LiNUX crashes
>   when port 13 (daytime) / port 37 (time) is "half-open scanned"..
> 
> 
>   Half-open scanning means that you:
> 
>     1) send SYN
>     2) if reply is SYN|ACK, send RST  = port is listening
>     3) if reply is RST                = port is not listening
> 
> 
>   I'm not skilled enough to write the code-piece for you to test this out,
>   but most of the new portscanner include this type of scanning method.
>   (scantcp 1.32, sirc, etc.)
> 
> 
> Quick & dirty workaround:
> 
>   Comment out daytime & time services from /etc/inetd.conf and restart inetd.
> 
> 

-- 

Ioannis Tambouras
ioannis@flinet.com, West Palm Beach, Florida
Signed pgp-key on key server.


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