Pakistan Computer Emergency Response Team

The Security Standard


HOME | ABOUT US | SERVICES | ADVISORIES | RESOURCES | DEFACEMENT ARCHIVE | MEMBERS AREA | TRAINING | CONTACT US

Copyright | Disclaimer

 

 

 


 
CA-2001-24 Vulnerability in OpenView and NetView

-----BEGIN PGP SIGNED MESSAGE-----

CERT Advisory CA-2001-24 Vulnerability in OpenView and NetView

Original release date: August 15, 2001
Last revised: --
Source: CERT/CC

A complete revision history can be found at the end of this file.

Systems Affected

* Systems running HP OpenView Network Node Manager (NNM) Version 6.1
on the following platforms:

* HP9000 Servers running HP-UX releases 10.20 and 11.00 (only)
* Sun Microsystems Solaris releases 2.x
* Microsoft Windows NT4.x / Windows 2000

* Systems running Tivoli NetView Versions 5.x and 6.x on the following
platforms:

* IBM AIX
* Sun Microsystems Solaris
* Compaq Tru64 Unix
* Microsoft Windows NT4.x / Windows 2000

Overview

ovactiond is a component of OpenView by Hewlett-Packard Company (HP)
and NetView by Tivoli, an IBM Company (Tivoli). These products are
used to manage large systems and networks. There is a serious
vulnerability in ovactiond that allows intruders to execute arbitrary
commands with elevated privileges. This may subsequently lead to an
intruder gaining administrative control of a vulnerable machine.

I. Description

ovactiond is the SNMP trap and event handler for both OpenView and
NetView. There is a vulnerability in ovactiond that allows an intruder
to execute arbitrary commands by sending a malicious message to the
management server. These commands run with the privileges of the
ovactiond process, which varies according to the operating system.

OpenView version 6.1 is vulnerable in the default configuration.
Versions prior to 6.1 are not vulnerable in the default configuration,
but there are public reports that versions prior to 6.1 may be
vulnerable if users have made customizations to the trapd.conf file.

On June 21, 2001, HP released a security bulletin (HP SB #154) and a
patch for this vulnerability in OpenView version 6.1. For more
information, see

http://us-support.external.hp.com/cki/bin/doc.pl/screen=ckiDisplayDocument?docId=200000055277985
http://www.kb.cert.org/vuls/id/952171

Tivoli NetView versions 5.x and 6.x are not vulnerable with the
default configuration. It is, however, likely that customized
configurations are vulnerable. This security vulnerability only exists
if an authorized user configures additional event actions and
specifies potentially destructive varbinds (those of type string or
opaque). Tivoli has developed a patch for versions 5.x and 6.x. The
patch addresses the vulnerability in ovactiond, as well as taking
preventative measures on other components specific to NetView.

Tivoli has published information on this vulnerability at

http://www.tivoli.com/support/

II. Impact

An intruder can execute arbitrary commands with the privileges of the
ovactiond process. On UNIX systems, ovactiond typically runs as user
bin; on Windows systems it typically runs in the Local System security
context. On Windows NT systems, this allows an intruder to gain
administrative control of the underlying operating system. On UNIX
systems, an intruder may be able to leverage bin access to gain root
access.

Additionally, systems running these products often have trust
relationships with other network devices. An intruder who compromises
these systems may be able to leverage this trust to compromise other
devices on the network or to make changes to the network
configuration.

III. Solution

Apply a patch

Appendix A contains information provided by vendors for this advisory.
We will update the appendix as we receive more information. If you do
not see your vendor's name, the CERT/CC did not hear from that vendor.
Please contact your vendor directly.

Appendix A. - Vendor Information

This appendix contains information provided by vendors for this
advisory. When vendors report new information to the CERT/CC, we
update this section and note the changes in our revision history. If a
particular vendor is not listed below, we have not received their
comments.

Apple

Mac OS X and Mac OS X Server do not have this vulnerability.

Computer Associates

Computer Associates has completed a review of all Unicenter functions
and processing related to SNMP traps as indicated by the advisory.
Unicenter is not subject to the same vulnerabilities as demonstrated
by the SNMP trap managers identified by CERT (i.e., OpenView and
NetView). CA Unicenter does not formulate commands determined through
trap data parsing. Unicenter implements this technology using
different methods and thereby avoids this exposure. Computer
Associates maintains strong relationships with these vendors and
recommends that clients running any environments containing either of
these products visit the website URLs specifically identified by the
CERT Coordination Center.

FreeBSD

FreeBSD does not use this code.

Fujitsu

Regarding VU#952171, Fujitsu's UXP/V operating system is not affected
because there's no implementation of any OpenView Technology in UXP/V.

Hewlett-Packard

On June 21, 2001, HP released a security bulletin (HP SB #154) and a
patch for this vulnerability in OpenView version 6.1. For more
information, see

http://us-support.external.hp.com/cki/bin/doc.pl/screen=ckiDisplayDocument?docId=200000055277985
http://www.kb.cert.org/vuls/id/952171

Microsoft

NNM is a third-party application as far as our platform is concerned.
We don't have any special relationship with it. HP would need to
provide the patches.

Tivoli

Tivoli acknowledges that certain user customizations to Tivoli NetView
may lead to a potential security exposure. Please reference
http://www.tivoli.com/support/ for further information and to obtain
an e-fix which addresses the issue.

References

1. http://us-support.external.hp.com/cki/bin/doc.pl/screen=ckiDisplayDocument?docId=200000055277985
2. http://www.tivoli.com/support/
3. http://www.securityfocus.com/bid/2845
4. http://www.kb.cert.org/vuls/id/952171
_________________________________________________________________

The CERT Coordination Center thanks Milo G. van der Zee for notifying
us about this problem, and Tivoli and Hewlett-Packard for other
information used in the construction of this advisory.
_________________________________________________________________

Feedback on this document can be directed to the authors, Jason A.
Rafail and Shawn Hernan.
______________________________________________________________________

This document is available from:
http://www.cert.org/advisories/CA-2001-24.html
______________________________________________________________________

CERT/CC Contact Information

Email: cert@cert.org
Phone: +1 412-268-7090 (24-hour hotline)
Fax: +1 412-268-6989
Postal address:
CERT Coordination Center
Software Engineering Institute
Carnegie Mellon University
Pittsburgh PA 15213-3890
U.S.A.

CERT personnel answer the hotline 08:00-17:00 EST(GMT-5) / EDT(GMT-4)
Monday through Friday; they are on call for emergencies during other
hours, on U.S. holidays, and on weekends.

Using encryption

We strongly urge you to encrypt sensitive information sent by email.
Our public PGP key is available from

http://www.cert.org/CERT_PGP.key

If you prefer to use DES, please call the CERT hotline for more
information.

Getting security information

CERT publications and other security information are available from
our web site

http://www.cert.org/

To subscribe to the CERT mailing list for advisories and bulletins,
send email to majordomo@cert.org. Please include in the body of your
message

subscribe cert-advisory

* "CERT" and "CERT Coordination Center" are registered in the U.S.
Patent and Trademark Office.
______________________________________________________________________

NO WARRANTY
Any material furnished by Carnegie Mellon University and the Software
Engineering Institute is furnished on an "as is" basis. Carnegie
Mellon University makes no warranties of any kind, either expressed or
implied as to any matter including, but not limited to, warranty of
fitness for a particular purpose or merchantability, exclusivity or
results obtained from use of the material. Carnegie Mellon University
does not make any warranty of any kind with respect to freedom from
patent, trademark, or copyright infringement.
_________________________________________________________________

Conditions for use, disclaimers, and sponsorship information

Copyright 2001 Carnegie Mellon University.

Revision History
August 15, 2001: Initial release

-----BEGIN PGP SIGNATURE-----
Version: PGPfreeware 5.0i for non-commercial use
Charset: noconv

iQCVAwUBO3q31wYcfu8gsZJZAQFhagP+N9mcuI14o8ykvy3FhiAm40F5YhycO+ik
z1uLdlKkzen+x5EDaQ/amkFu8S8sIvB3iyu1DbB+GmxAHKQHzBGnnC6sJAqU3dYp
XpaSCUGX6tW8mfjaogaZVUaENh21Wtj/lVa0sbG9GD+FmAZdgebEM59OoOY+vkRZ
xGCSnS9TBtQ=
=gBbI
-----END PGP SIGNATURE-----

All rights reserved. Copyright© PakCERT 2000-2017