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Breach Attach

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August 12, 2013

Breach Attach

A simple introduce for breach attach

Avatar for soffolk

soffolk

August 12, 2013

Other Decks in Technology

Transcript

  1. A  new  a)ack  on  web  apps     that  can

     recover  secrets  even  from   SSL-­‐secured  connec:ons  
  2. To  be  vulnerable,  a  web   applica:on  must   • 

    Be  served  from  a  server  that  uses  HTTP-­‐level   compression   •  Reflect  user-­‐input  in  HTTP  response  bodies   •  Reflect  a  secret  (such  as  a  CSRF  token)  in  HTTP   response  bodies  
  3. •  Disabling  HTTP  compression   •  Separa:ng  secrets  from  user

     input   •  Randomizing  secrets  per  request   •  Masking  secrets  (effec:vely  randomizing  by   XORing  with  a  random  secret  per  request)   •  Protec:ng  vulnerable  pages  with  CSRF   •  Length  hiding  (by  adding  random  amount  of   bytes  to  the  responses)   •  Rate-­‐limi:ng  the  requests