ecryptfs team mailing list archive

[Dustin Kirkland <dustin.kirkland@xxxxxxxxx>]

** Also affects: ecryptfs
   Importance: Undecided
       Status: New

** Changed in: ecryptfs
       Status: New => Fix Released

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ecryptfs-setup-private potentially exposes passwords in the process table
https://bugs.launchpad.net/bugs/287908
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Status in eCryptfs - Enterprise Cryptographic Filesystem: Fix Released
Status in “ecryptfs-utils” source package in Ubuntu: Fix Released
Status in ecryptfs-utils in Ubuntu Intrepid: Fix Released

Bug description:
Binary package hint: ecryptfs-utils

ecryptfs-setup-private potentially exposes passwords in the process table.

There are two calls in ecryptfs-setup-private to helper utilities:
 * ecryptfs-wrap-passphrase
 * ecryptfs-add-passphrase
that use passwords on the command line.

There is a small yet real possibility that these passwords could be exposed on the process table momentarily.

To fix this problem, we need to:
 a) patch both ecryptfs-wrap-passphrase and ecryptfs-add-passphrase to take passphrases on stdin
 b) modify the callers to use a dash/bash builtin function (such as echo or printf) to send this passphrases to those utilities on standard in

Thanks to Jamie Strandboge for the bug report.

:-Dustin