As someone who runs a non-WMF MediaWiki installation and might set up at
least one more, it's something that I want to know about. :) More info at
https://phabricator.wikimedia.org/T158986, although if I understand the
conversation on the Phabricator task correctly, the consensus is that
migration off of SHA-1 for MediaWiki software is important but doesn't need
to happen overnight because the attack is difficult to execute; however,
possible attacks on other software that still runs SHA-1 should be
considered. Is that correct, Brian?
Pine
On Fri, Feb 24, 2017 at 1:01 PM, Brian Wolff <bawolff(a)gmail.com> wrote:
Before anyone panics, this is not something that
people who run mediawiki
wikis have to worry about.
--
Brian
On Friday, February 24, 2017, Pine W <wiki.pine(a)gmail.com> wrote:
Forwarding info that may be of interest.
Pine
---------- Forwarded message ----------
From: Brion Vibber <bvibber(a)wikimedia.org>
Date: Fri, Feb 24, 2017 at 9:56 AM
Subject: [Wikitech-l] SHA-1 hash officially broken
To: Wikimedia-tech list <wikitech-l(a)lists.wikimedia.org>
Google security have announced that they have a working collision attack
against the SHA-1 hash:
https://security.googleblog.com/2017/02/announcing-first-
sha1-collision.html
It's highly recommended to move to sha-256 where doable.
Note that MediaWiki uses sha-1 in a number of places; in some such as
revision hashes it's advisory for tools only, but in other places like
deleted files (filearchive table) we use it for addressing, and should
consider steps to mitigate attacks swapping in alternate files during
deletion/undeletion.
-- brion
_______________________________________________
Wikitech-l mailing list
Wikitech-l(a)lists.wikimedia.org
https://lists.wikimedia.org/mailman/listinfo/wikitech-l
_______________________________________________
MediaWiki-l mailing list
To unsubscribe, go to:
https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
_______________________________________________
MediaWiki-l mailing list
To unsubscribe, go to:
https://lists.wikimedia.org/mailman/listinfo/mediawiki-l