Re: PLEASE READ: An Important Security Announcement from ISC

2012-02-08 Thread Kazunori Fujiwara
Searching the title of the vulnerability with google results one PDF document.
  
http://www.google.co.jp/#q=Ghost+Domain+Names:+Revoked+Yet+Still+Resolvable+PDF

It shows details.

--
Kazunori Fujiwara

 From: Michael McNally mcna...@isc.org
 PLEASE READ:  An important security announcement from ISC
 
   ISC has been notified by Haixin Duan (a professor at Tsinghua
   University in Beijing China, who is currently visiting the
   International Computer Science Institute (ICSI) at the University
   of California, Berkeley) about a DNS resolver vulnerability that
   potentially allows a party to keep a domain name in the cache
   even after that domain name has been expired
 
   ISC is evaluating the risk of this vulnerability, but his published
   paper shows how this was demonstrated, live across the Internet.
   It lists several DNS implementations and open resolver deployments
   as vulnerable. All BIND 9 versions are currently considered
   vulnerable.
 
   A more detailed description of this vulnerability and ISC's
   planned response can be found at:
 
  https://www.isc.org/software/bind/advisories/cve-2012-1033
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Re: PLEASE READ: An Important Security Announcement from ISC

2012-02-08 Thread Tony Finch
Chris Thompson c...@cam.ac.uk wrote:

 More directly, http://www.cs.indiana.edu/classes/b649-gupt/kangLiNDSS12.pdf

 This is definitely worth reading, being an interesting new twist on a
 fairly old theme.

Paul Vixie was trying to do something about risks in this area a couple of
years ago: http://tools.ietf.org/html/draft-vixie-dnsext-resimprove-00

Tony.
-- 
f.anthony.n.finch  d...@dotat.at  http://dotat.at/
Northwest FitzRoy: Southerly 4 or 5. Moderate or rough. Occasional rain or
drizzle. Good, occasionally poor.
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PLEASE READ: An Important Security Announcement from ISC

2012-02-07 Thread Michael McNally

PLEASE READ:  An important security announcement from ISC

  ISC has been notified by Haixin Duan (a professor at Tsinghua
  University in Beijing China, who is currently visiting the
  International Computer Science Institute (ICSI) at the University
  of California, Berkeley) about a DNS resolver vulnerability that
  potentially allows a party to keep a domain name in the cache
  even after that domain name has been expired

  ISC is evaluating the risk of this vulnerability, but his published
  paper shows how this was demonstrated, live across the Internet.
  It lists several DNS implementations and open resolver deployments
  as vulnerable. All BIND 9 versions are currently considered
  vulnerable.

  A more detailed description of this vulnerability and ISC's
  planned response can be found at:

 https://www.isc.org/software/bind/advisories/cve-2012-1033
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