Zhen-Xjell
February 15th, 2002, 07:28 PM
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Title: * * *Unchecked Buffer in SNMP Service Could Enable Arbitrary
* * * * * *Code to be Run
Released: * 12 February 2002
Revised: * *15 February 2002 (Version 2.0)
Software: * Microsoft Windows 95, 98, 98SE, NT 4.0, NT 4.0 Terminal
* * * * * *Server Edition, 2000, XP
Impact: * * Denial of Service, potentially run code of
* * * * * *attacker's choice
Max Risk: * Moderate
Bulletin: * MS02-006
Microsoft encourages customers to review the Security Bulletin at:
http://www.microsoft.com/technet/security/bulletin/MS02-006.asp.
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Reason for Revision:
====================
On February 12 2002, Microsoft released the original version of this
bulletin. In it, we detailed a work-around procedure that customers
could implement to protect themselves against a publicly disclosed
vulnerability. An updated version of this bulletin was released on
February 15, 2002, to announce the availability of the patch for
Windows 2000 and Windows XP and to advise customers that the
work-around procedure is no longer needed on those platforms. Patches
for additional platforms are forthcoming and this bulletin will
be re-released to annouce their availability.
Issue:
======
Simple Network Management Protocol (SNMP) is an Internet standard
protocol for managing disparate network devices such as firewalls,
computers, and routers. All versions of Windows except Windows ME
provide an SNMP implementation, which is neither installed nor
running by default in any version.
A buffer overrun is present in all implementations. By sending a
specially malformed management request to a system running an
affected version of the SNMP service, an attacker could cause a
denial of service. In addition, it is possible that he cause code
to run on the system in LocalSystem context. This could
potentially give the attacker the ability to take any desired
action on the system.
A patch is under development to eliminate the vulnerability.
In the meantime, Microsoft recommends that customers who use the
SNMP service disable it temporarily. Patches will be available
shortly, at which time we will re-release this bulletin with
updated details.
Mitigating Factors:
====================
- The SNMP service is neither installed nor running by default
* in any version of Windows.
- Standard firewalling practices recommend blocking the port
* over which SNMP operates (UDP ports 161 and 162). If these
* recommendations have been followed, the vulnerability could
* only be exploited by an intranet user.
- Standard security recommendations recommend against using SNMP
* except on trusted networks, as the protocol, by design,
* provides minimal security.
Risk Rating:
============
- Internet systems: Low
- Intranet systems: Moderate
- Client systems: Moderate
Patch Availability:
===================
- A patch is available to fix this vulnerability for WIndows 2000
* and Windows XP. Please read the Security Bulletin at
* http://www.microsoft.com/technet/security/bulletin/ms02-006.asp
* for information on obtaining this patch.
- Patches for other platforms are under development and will be
* available shortly. When this happens, we will re-release this
* bulletin with information on how to obtain and install these
* patches.
- -
- ---------------------------------------------------------------------
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL
WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE
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.
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*******************************************************************
You have received this e-mail bulletin as a result of your subscription to the Microsoft Product Security Notification * Service. *For more information on this service, please visit http://www.microsoft.com/technet/security/notify.asp.
To verify the digital signature on this bulletin, please download our PGP key at http://www.microsoft.com/technet/security/notify.asp.
To cancel your subscription, click on the following link mailto:1_25759_1E81A08D-A2CD-4E10-8D7F-16D1039270F8_US@Newsletters.Microsoft.com?subject=UNSUBSCRIBE to create an unsubscribe e-mail.
To stop all e-mail newsletters from microsoft.com, click on the following link mailto:2_25759_1E81A08D-A2CD-4E10-8D7F-16D1039270F8_US@Newsletters.Microsoft.com?subject=STOPMAIL to create an unsubscribe e-mail. *You can manage all your Microsoft.com communication preferences from http://www.microsoft.com/misc/unsubscribe.htm
For security-related information about Microsoft products, please *visit the Microsoft Security Advisor web site at http://www.microsoft.com/security.
- -
- ----------------------------------------------------------------------
Title: * * *Unchecked Buffer in SNMP Service Could Enable Arbitrary
* * * * * *Code to be Run
Released: * 12 February 2002
Revised: * *15 February 2002 (Version 2.0)
Software: * Microsoft Windows 95, 98, 98SE, NT 4.0, NT 4.0 Terminal
* * * * * *Server Edition, 2000, XP
Impact: * * Denial of Service, potentially run code of
* * * * * *attacker's choice
Max Risk: * Moderate
Bulletin: * MS02-006
Microsoft encourages customers to review the Security Bulletin at:
http://www.microsoft.com/technet/security/bulletin/MS02-006.asp.
- -
- ----------------------------------------------------------------------
Reason for Revision:
====================
On February 12 2002, Microsoft released the original version of this
bulletin. In it, we detailed a work-around procedure that customers
could implement to protect themselves against a publicly disclosed
vulnerability. An updated version of this bulletin was released on
February 15, 2002, to announce the availability of the patch for
Windows 2000 and Windows XP and to advise customers that the
work-around procedure is no longer needed on those platforms. Patches
for additional platforms are forthcoming and this bulletin will
be re-released to annouce their availability.
Issue:
======
Simple Network Management Protocol (SNMP) is an Internet standard
protocol for managing disparate network devices such as firewalls,
computers, and routers. All versions of Windows except Windows ME
provide an SNMP implementation, which is neither installed nor
running by default in any version.
A buffer overrun is present in all implementations. By sending a
specially malformed management request to a system running an
affected version of the SNMP service, an attacker could cause a
denial of service. In addition, it is possible that he cause code
to run on the system in LocalSystem context. This could
potentially give the attacker the ability to take any desired
action on the system.
A patch is under development to eliminate the vulnerability.
In the meantime, Microsoft recommends that customers who use the
SNMP service disable it temporarily. Patches will be available
shortly, at which time we will re-release this bulletin with
updated details.
Mitigating Factors:
====================
- The SNMP service is neither installed nor running by default
* in any version of Windows.
- Standard firewalling practices recommend blocking the port
* over which SNMP operates (UDP ports 161 and 162). If these
* recommendations have been followed, the vulnerability could
* only be exploited by an intranet user.
- Standard security recommendations recommend against using SNMP
* except on trusted networks, as the protocol, by design,
* provides minimal security.
Risk Rating:
============
- Internet systems: Low
- Intranet systems: Moderate
- Client systems: Moderate
Patch Availability:
===================
- A patch is available to fix this vulnerability for WIndows 2000
* and Windows XP. Please read the Security Bulletin at
* http://www.microsoft.com/technet/security/bulletin/ms02-006.asp
* for information on obtaining this patch.
- Patches for other platforms are under development and will be
* available shortly. When this happens, we will re-release this
* bulletin with information on how to obtain and install these
* patches.
- -
- ---------------------------------------------------------------------
THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL
WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE
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.
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*******************************************************************
You have received this e-mail bulletin as a result of your subscription to the Microsoft Product Security Notification * Service. *For more information on this service, please visit http://www.microsoft.com/technet/security/notify.asp.
To verify the digital signature on this bulletin, please download our PGP key at http://www.microsoft.com/technet/security/notify.asp.
To cancel your subscription, click on the following link mailto:1_25759_1E81A08D-A2CD-4E10-8D7F-16D1039270F8_US@Newsletters.Microsoft.com?subject=UNSUBSCRIBE to create an unsubscribe e-mail.
To stop all e-mail newsletters from microsoft.com, click on the following link mailto:2_25759_1E81A08D-A2CD-4E10-8D7F-16D1039270F8_US@Newsletters.Microsoft.com?subject=STOPMAIL to create an unsubscribe e-mail. *You can manage all your Microsoft.com communication preferences from http://www.microsoft.com/misc/unsubscribe.htm
For security-related information about Microsoft products, please *visit the Microsoft Security Advisor web site at http://www.microsoft.com/security.