[jira] [Closed] (JAMES-2201) Vulnerable to SHAttered attack

["Antoine Duprat (JIRA)" <se...@james.apache.org>]

     [ https://issues.apache.org/jira/browse/JAMES-2201?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Duprat closed JAMES-2201.
---------------------------------

> Vulnerable to SHAttered attack
> ------------------------------
>
>                 Key: JAMES-2201
>                 URL: https://issues.apache.org/jira/browse/JAMES-2201
>             Project: James Server
>          Issue Type: Bug
>          Components: mailbox
>    Affects Versions: master
>            Reporter: Thibaut SAUTEREAU
>            Priority: Minor
>             Fix For: master
>
>
> Given the way SHA-1 is used to index attachments, it is vulnerable to the SHAttered attack (https://shattered.io/), meaning you can overwrite the attachment of a first email with a second email).
> It is not critical yet as it took a lot of computational power from Google to generate those 2 PDFs, but this issue will probably become widespread in coming years and I think switching to SHA-256 for instance is a low hanging fruit.
> The same problem arises with Cassandra blob IDs.



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