-----BEGIN PGP SIGNED MESSAGE-----
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
Operating System: MS Windows
Impact: Modify Arbitrary files
Access Required: Remote
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_ /
\___ __|__ / \___
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
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 email@example.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.)
- -----BEGIN PGP SIGNATURE-----
Version: 4.0 Business Edition
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----