Exploit the possiblities

ms02-049

ms02-049
Posted Sep 5, 2002
Site microsoft.com

Microsoft Security Advisory MS02-049 - Users who have installed Visual FoxPro 6.0 are vulnerable to a remote command execution vulnerability through IE web browsing or HTML email messages.

tags | remote, web
MD5 | 91839578fa4e03aea6f2faec69c2fed9

ms02-049

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----

- ----------------------------------------------------------------------
Title: Flaw Could Enable Web Page to Launch Visual FoxPro=20
6.0 Application Without Warning (Q326568)
Date: 04 September 2002
Software: Microsoft Visual FoxPro 6.0
Impact: Attacker could gain control over user's system.
Max Risk: Moderate
Bulletin: MS02-049

Microsoft encourages customers to review the Security Bulletin at:
http://www.microsoft.com/technet/security/bulletin/MS02-049.asp.
- ----------------------------------------------------------------------

Issue:
=3D=3D=3D=3D=3D=3D
In general, when an product installs, it should register itself with
Internet Explorer. This allows the product to specify how Internet
Explorer should handle files associated with it when referenced from
a web page - for instance, it allows the product to specify whether
the user should be presented with a warning dialogue before such a
file is opened.=20

Visual FoxPro 6.0 does not perform this registration, and this gives
rise to a situation in which a web page could automatically launch a
Visual FoxPro application (i.e., an .app file). In most cases, this
would not result in a security vulnerability - because of the way
Visual FoxPro 6.0 evaluates file names, FoxPro itself could be
started but the .app file would typically not run. However, if the
filename of the application were constructed in a particular way, a
second error (associated with how Visual FoxPro 6.0 evaluates
application filenames) could not only start FoxPro but allow the
application to execute.=20

The vulnerability could be exploited by creating a web page that
references a Visual FoxPro application, and either hosting it on a
web site or sending it to a user as an HTML mail. If the user had
installed Visual FoxPro 6.0 - or had installed a product that
includes the Visual FoxPro 6.0 runtime - and the filename of the
application was constructed in a particular way, the application
would execute. This would enable the application to not only
interrogate databases, but also issue system commands in the user's
security context.=20

Mitigating Factors:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- The vulnerability could only be exploited if Visual FoxPro 6.0
(or the Visual FoxPro 6.0 runtime) is installed on the system.=20
Other products, and other versions of Visual FoxPro, are not=20
affected by the vulnerability.=20
- The most privileges the application could gain would be those=20
of the user. If the user were operating in a less-privileged=20
context, it would limit the damage that the application could
cause.

Risk Rating:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- Internet systems: Low
- Intranet systems: Low
- Client systems: Moderate

Patch Availability:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- A patch is available to fix this vulnerability. Please read the=20
Security Bulletin at
http://www.microsoft.com/technet/security/bulletin/ms02-049.asp
for information on obtaining this patch.

Acknowledgment:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
- Cristobal Bielza and Juan Carlos G. Cuartango from Instituto=20
Seguridad Internet (http://www.instisec.com)
- ---------------------------------------------------------------------

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS=20
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE=20
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE
FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO
THE FOREGOING LIMITATION MAY NOT APPLY.

-----BEGIN PGP SIGNATURE-----
Version: PGP 7.1

iQEVAwUBPXZOto0ZSRQxA/UrAQFItQf+Ngf4YeZLp127K4yeAr7DWt6ngP8JM3m2
XASeBTNq25zrHl2l5FCL3eLEZOCjD51TZ53ZcgcAadBarWdHIncIUdMnfPG2tR9z
UtszFBBZRhZUR//DnewVOr70CPnL4RBDUt/rhPWrHDMxPKwGOKQeu3IDj2NjcKCm
jjys+gGJ4ZaiVKfRRFpUnDOeWicy9JcvYWQk6DGvvjfL67bbu6lallW0KkBcpEey
6Kyz0GKI8+ICZhHypiFU3gy4Kcooi9v4G6PuIFRWpQfpNgNEUFQmptBKDV6PHSsW
6H6FnhxIyY7YJtp2VKDp/IfWUKH4LaNRrnjkaO6LK98AAju7PU+q2A=3D=3D
=3DKffn
-----END PGP SIGNATURE-----

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

Want To Donate?


Bitcoin: 18PFeCVLwpmaBuQqd5xAYZ8bZdvbyEWMmU

File Archive:

January 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jan 1st
    2 Files
  • 2
    Jan 2nd
    13 Files
  • 3
    Jan 3rd
    16 Files
  • 4
    Jan 4th
    39 Files
  • 5
    Jan 5th
    26 Files
  • 6
    Jan 6th
    40 Files
  • 7
    Jan 7th
    2 Files
  • 8
    Jan 8th
    16 Files
  • 9
    Jan 9th
    25 Files
  • 10
    Jan 10th
    28 Files
  • 11
    Jan 11th
    44 Files
  • 12
    Jan 12th
    32 Files
  • 13
    Jan 13th
    2 Files
  • 14
    Jan 14th
    4 Files
  • 15
    Jan 15th
    31 Files
  • 16
    Jan 16th
    15 Files
  • 17
    Jan 17th
    16 Files
  • 18
    Jan 18th
    24 Files
  • 19
    Jan 19th
    15 Files
  • 20
    Jan 20th
    5 Files
  • 21
    Jan 21st
    1 Files
  • 22
    Jan 22nd
    15 Files
  • 23
    Jan 23rd
    12 Files
  • 24
    Jan 24th
    0 Files
  • 25
    Jan 25th
    0 Files
  • 26
    Jan 26th
    0 Files
  • 27
    Jan 27th
    0 Files
  • 28
    Jan 28th
    0 Files
  • 29
    Jan 29th
    0 Files
  • 30
    Jan 30th
    0 Files
  • 31
    Jan 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close