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Big Brother Advisory - Fate Research Labs
From: Loki <loki () f8labs com>
Date: Tue, 21 Nov 2000 10:33:42 -0800

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                                www.f8labs.com





[ INTRODUCTION ]

Advisory .........: File Discovery Vulnerability
Release Date .....: 11-20-00
Application ......: bb-hist.sh
                    bb-histlog.sh
                    bb-hostsvc.sh
                    bb-rep.sh
                    bb-replog.sh
                    bb-ack.sh
Vendor Web Site ..: www.bb4.com
Versions Affected.: All installed BB CGI scripts prior to v1.5d3
Vendor Status ....: Contacted // Patch Available (Thanks Robert for
                    being so cooperative.)
WWW ..............: www.f8labs.com
SHOUTS ...........: Moo baby, Im a sexy cow, yea!




[ OVERVIEW ]

Big Brother is designed to let anyone - from omniscient Sys
Admins, to Pointy-Headed Bosses, see how the network is doing
in near real-time, from any web browser, anywhere.



[ ADVISORY ]

Vulnerabilities exists such that someone can identify if sensitive
files exists and determine user ids on the BBDISPLAY server(s)
and use those to launch a password brute-force attack.
e.g. http://www.victim.com/cgi-bin/bb-hist.sh?HISTFILE=/home/*

history
Mon Nov 20 22:07:25 EST 2000

Error reading history file [adam]

Utilizing this information, we are able to then validate not
only if sensitive files exist on the system, but also, valid
user accounts for a further brute-force attack on the system.



[ RESOURCES ]

Patch Details
http://bb4.com/incident.nov21

Big Brother Technologies
http://www.bb4.com

Fate Research Labs
http://www.f8labs.com



================================================================
Loki
Fate Research Labs
loki () f8labs com
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