[Openstack-security] [Bug 1668503] [NEW] sha512_crypt is insufficient, use pdkfd_sha512 for password hashing
Morgan Fainberg
morgan.fainberg at gmail.com
Tue Feb 28 05:23:47 UTC 2017
*** This bug is a security vulnerability ***
Public security bug reported:
Keystone uses sha512_crypt for password hashing. This is completely
insufficient and provides limited protection (even with 10,000 rounds)
against brute-forcing of the password hashes (especially with FPGAs
and/or GPU processing).
The correct mechanism is to use bcrypt, scrypt, or pdkfd_sha512 instead
of sha512_crypt.
This bug is marked as public security as bug #1543048 has already
highlighted this issue.
** Affects: keystone
Importance: Critical
Assignee: Morgan Fainberg (mdrnstm)
Status: Triaged
** Affects: ossa
Importance: Undecided
Status: Incomplete
** Tags: security
** Also affects: ossa
Importance: Undecided
Status: New
** Changed in: ossa
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1668503
Title:
sha512_crypt is insufficient, use pdkfd_sha512 for password hashing
Status in OpenStack Identity (keystone):
Triaged
Status in OpenStack Security Advisory:
Incomplete
Bug description:
Keystone uses sha512_crypt for password hashing. This is completely
insufficient and provides limited protection (even with 10,000 rounds)
against brute-forcing of the password hashes (especially with FPGAs
and/or GPU processing).
The correct mechanism is to use bcrypt, scrypt, or pdkfd_sha512
instead of sha512_crypt.
This bug is marked as public security as bug #1543048 has already
highlighted this issue.
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https://bugs.launchpad.net/keystone/+bug/1668503/+subscriptions
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