News Exchange/Outlook Autodiscover Bug Spills Emails/Passwords in plain text

[Wallace_n_Gromit]

Autodiscover was first introduced in Exchange 2007.

Exchange/Outlook Autodiscover Bug Spills 100K+ Email Passwords

Hundreds of thousands of email credentials, many of which double as Active Directory domain credentials, came through to credential-trapping domains in clear text.

threatpost.com

Microsoft Exchange Autodiscover bugs leak 100K Windows credentials

Bugs in the implementation of Microsoft Exchange's Autodiscover feature have leaked approximately 100,000 login names and passwords for Windows domains worldwide.

www.bleepingcomputer.com

As a kludge, Microsoft has begun registering autodiscover.* TLD's around the world since mid-September (BEFORE THE BAD GUYS DO) such as:

autodiscover.af autodiscover.tl autodiscover.pn autodiscover.ax autodiscover.gf autodiscover.pr autodiscover.as autodiscover.tf autodiscover.re autodiscover.ag autodiscover.gl autodiscover.rw autodiscover.am autodiscover.gp autodiscover.lc autodiscover.ac autodiscover.gt autodiscover.pm autodiscover.by autodiscover.gy autodiscover.st autodiscover.bj autodiscover.ht autodiscover.sn autodiscover.bi autodiscover.hn autodiscover.sc autodiscover.cm autodiscover.hk autodiscover.sl autodiscover.cl autodiscover.je autodiscover.sx autodiscover.do autodiscover.ke autodiscover.sk Security Now! #838 12 autodiscover.tl autodiscover.ly autodiscover.sb autodiscover.gf autodiscover.li autodiscover.so autodiscover.tf autodiscover.mg autodiscover.so autodiscover.gl autodiscover.mw autodiscover.gs autodiscover.af autodiscover.mq autodiscover.com.es autodiscover.ax autodiscover.yt autodiscover.org.es autodiscover.as autodiscover.mn autodiscover.ch autodiscover.ag autodiscover.ms autodiscover.tj autodiscover.am autodiscover.ma autodiscover.tg autodiscover.ac autodiscover.na autodiscover.tt autodiscover.by autodiscover.nz autodiscover.ug autodiscover.bj autodiscover.ni autodiscover.vi autodiscover.bi autodiscover.ng autodiscover.uz autodiscover.cm autodiscover.nf autodiscover.vu autodiscover.cl autodiscover.pa autodiscover.vn autodiscover.do autodiscover.pe autodiscover.wf

How To Fix The Microsoft Exchange Autodiscover Flaw?

The flaw can cause massive damage to the business. It is highly important to address this issue. Let's see how to fix the Microsoft Exchange Autodiscover flaw.

www.thesecmaster.com

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discussion of the Autodiscover bug begins 1:16:48 into Security Now show