Full Disclosure mailing list archives

RE: FW: Citibank tries to gag crypto bug disclo sure


From: John.Airey () rnib org uk
Date: Wed, 26 Feb 2003 23:24:04 -0000

Looks to me like the story isn't gagged any longer: 

http://news.bbc.co.uk/1/hi/england/2798029.stm 

- 
John Airey, BSc (Jt Hons), CNA, RHCE 
Internet systems support officer, ITCSD, Royal National Institute of the
Blind, 
Bakewell Road, Peterborough PE2 6XU, 
Tel.: +44 (0) 1733 375299 Fax: +44 (0) 1733 370848 John.Airey () rnib org uk 

A world of difference - in the UK, 37 million people put their faith on the
last census as "Christian". In Saudi Arabia, this answer would carry a death
sentence for any Saudi.



-----Original Message----- 
From: Richard M. Smith [mailto:rms () computerbytesman com] 
Sent: 20 February 2003 23:39 
To: full-disclosure () lists netsys com 
Subject: [Full-disclosure] FW: Citibank tries to gag crypto bug 
disclosure 


From http://cryptome.org/pacc.htm 

To: ukcrypto () chiark greenend org uk 
Subject: Citibank tries to gag crypto bug disclosure 
Date: Thu, 20 Feb 2003 09:57:34 +0000 
From: Ross Anderson <Ross.Anderson () cl cam ac uk> 

Citibank is trying to get an order in the High Court today gagging 
public 
disclosure of crypto vulnerabilities: 

  http://www.cl.cam.ac.uk/ftp/users/rja14/citibank_gag.pdf 

I have written to the judge opposing the order: 

  http://www.cl.cam.ac.uk/ftp/users/rja14/citibank_response.pdf 

The background is that my student Mike Bond has discovered 
some really 
horrendous vulnerabilities in the cryptographic equipment 
commonly used 
to protect the PINs used to identify customers to cash machines: 

  http://www.cl.cam.ac.uk/TechReports/UCAM-CL-TR-560.pdf 

These vulnerabilities mean that bank insiders can almost 
trivially find 
out the PINs of any or all customers. The discoveries happened while 
Mike 
and I were working as expert witnesses on a `phantom withdrawal' case. 

The vulnerabilities are also scientifically interesting: 

  http://cryptome.org/pacc.htm 

For the last couple of years or so there has been a rising tide of 
phantoms. 
I get emails with increasing frequency from people all over the world 
whose 
banks have debited them for ATM withdrawals that they deny 
making. Banks 
in 
many countries simply claim that their systems are secure and so the 
customers must be responsible. It now looks like some of these 
vulnerabilities have also been discovered by the bad guys. Our courts 
and 
regulators should make the banks fix their systems, rather than just 
lying 
about security and dumping the costs  on the customers. 

Curiously enough, Citi was also the bank in the case that set 
US law on 
phantom withdrawals from ATMs (Judd v Citibank). They lost. I hope 
that's 
an omen, if not a precedent ... 

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