AUSCERT External Security Bulletin Redistribution
                    ESB-2000.122 --  CIAC Bulletin K-048
               Permissions Problems with FrontPage Extensions
                                06 June 2000


	AusCERT Security Bulletin Summary

Product:		FrontPage Server Extensions
Vendor:			Microsoft
Operating System:	MS Windows
Platform:		N/A

Impact:			Modify Arbitrary files
Access Required:	Remote

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                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_   /
                          \___  __|__  /     \___

                             INFORMATION BULLETIN

                 Permissions Problems with FrontPage Extensions

June 1, 2000 22:00 GMT                                         Number K-048
PROBLEM:       Permission settings on FrontPage Extensions may allow 
               defacements of web pages. 
PLATFORM:      UNIX: The FrontPage Server Extensions on the following web
               servers: Apache 1.1.3 or 1.2, CERN 3.0, NCSA 1.5.2, Netscape 
               Commerce Server 1.12, Netscape Communications Server 1.12, 
               Netscape Enterprise 2.0 and 3.0, Netscape FastTrack 2.0. 
               Windows NT: The FrontPage Server Extensions on the following 
               web servers: Internet Information Server (IIS) 2.0 or 
               higher, (including IIS 4.0), Netscape Commerce Server 1.12, 
               Netscape Communications Server 1.12, Netscape Enterprise 
               Server 2.0 and 3.0, Netscape FastTrack 2.0, O'Reilly 
               WebSite, FrontPage Personal Web Server. 
               Windows 95/98: The FrontPage Extensions also run on Windows
               95/98, but this will be covered in a future bulletin.
DAMAGE:        A remote user may deface web pages of any given site when 
               the permissions are not set properly. 
SOLUTION:      Change the permissions on directories and files as indicated 
VULNERABILITY  The risk is HIGH. Multiple web pages have been defaced by 
ASSESSMENT:    exploiting the permissions of FrontPage Extensions. 


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
    Voice:    +1 925-422-8193
    FAX:      +1 925-423-8002
    STU-III:  +1 925-423-2604
    E-mail:   ciac@llnl.gov

For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), use one of the following methods to contact CIAC:

    1.  Call the CIAC voice number 925-422-8193 and leave a message, or

    2.  Call 888-449-8369 to send a Sky Page to the CIAC duty person or

    3.  Send e-mail to 4498369@skytel.com, or

    4.  Call 800-201-9288 for the CIAC Project Leader.

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

   World Wide Web:      http://www.ciac.org/
                        (or http://ciac.llnl.gov -- they're the same machine)
   Anonymous FTP:       ftp.ciac.org
                        (or ciac.llnl.gov -- they're the same machine)
   Modem access:        +1 (925) 423-4753 (28.8K baud)
                        +1 (925) 423-3331 (28.8K baud)

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins.  If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)

K-035: Backdoor Password in Red Hat Linux Virtual Server Package
K-036: Continuing Compromises of DNS Servers
K-037: "mstream" Distributed Denial of Service Tool
K-038: Security Holes in FileMaker 5 Web Companion
K-039: LoveLetter.A Worm
K-040: Netscape Navigator Improperly Validates SSL Sessions
K-041: Denial of Service and File reading Vulnerabilities
K-042: Microsoft "Office 2000 UA Control" Vulnerability
K-043: Buffer Overrun Vulnerabilities in Kerberos
K-044: Microsoft Vulnerabilities in Internet Explorer 
K-045: SGI Vulnerability in infosrch.cgi

(K-046 and K-047 have not been released at this time.)

Version: 4.0 Business Edition


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