__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN
Web-Based Enterprise Management on Solaris 8 Installs Insecure Files
[Sun Alert ID: 48320 ]
October 31, 2002 16:00 GMT Number N-010
______________________________________________________________________________
PROBLEM: Web-Based Enterprise Management (WBEM)packages "SUNWwbdoc",
"SUNWwbcou", "SUNWwbdev" and "SUNWmgapp" are installed with
world and/or group write permissions.
SOTFWARE: Solaris 8 Update 1/01 (or later Solaris 8 Update Releases)
DAMAGE: An unprivileged local user may be able to gain unauthorized
root access or cause a denial of service.
SOLUTION: Apply available patches.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. An unprivileged local user may be able to
ASSESSMENT: gain unauthorized root access. There are no symptoms that would
show the described issue has already been exploited.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-010.shtml
ORIGINAL BULLETIN:
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%
2F48320&zone_32=category%3Asecurity
PATCHES:
http://sunsolve.sun.com/pub-cgi/findPatch.pl?
patchId=109134&rev=27
http://sunsolve.sun.com/pub-cgi/findPatch.pl?
patchId=109135&rev=27
______________________________________________________________________________
[***** Start Sun Alert ID: 48320 *****]
Sun(sm) Alert Notification
Sun Alert ID: 48320
Synopsis: Web-Based Enterprise Management (WBEM) on Solaris 8 Installs Insecure Files
Category: Security
Product: Solaris
BugIDs: 4381755
Avoidance: Patch, Workaround
State: Resolved
Date Released: 28-Oct-2002
Date Closed: 28-Oct-2002
Date Modified:
1. Impact
Installation of Solaris 8 Update 1/01 (or later Solaris 8 Update Releases) will by
default install the Web-Based Enterprise Management (WBEM) packages "SUNWwbdoc",
"SUNWwbcou", "SUNWwbdev" and "SUNWmgapp". These packages install files with world
and/or group write permissions.
As a result, an unprivileged local user may be able to gain unauthorized root access
or cause a denial of service.
2. Contributing Factors
This issue can occur in the following releases:
SPARC
Solaris 8 Update 1/01 and later Solaris 8 Update releases without patch 109134-
27
Intel
Solaris 8 Update 1/01 and later Solaris 8 Update releases without patch 109135-
27
Note: Solaris 9 is not affected.
Note: Web-Based Enterprise Management was introduced in Solaris 8 Update 1/01 and is
not supported on earlier Solaris releases (the contents of the "/etc/release" file
reflects the currently installed Solaris release). Therefore, Solaris 8, Solaris 8
Update 6/00 and Solaris 8 Update 10/00 are not affected by this issue.
Only systems that have one or more of the following packages installed are affected by
this issue:
SUNWwbdoc
SUNWwbcou
SUNWwbdev
SUNWmgapp
The pkginfo(1) command will display the currently installed packages.
3. Symptoms
On affected systems, some files have group or world write permissions set, for example
the "/usr/sadm/lib/wbem/cimomboot" as shown in the following example:
$ ls -l /usr/sadm/lib/wbem/cimomboot
-rwxrwxr-x 1 root sys 5128 Feb 23 2001 /usr/sadm/lib/wbem/cimomboot
Other files with group or world write permissions set can be found in the "/usr/sadm"
and "/usr/demo/wbem" directories.
There are no symptoms that would show the described issue has already been exploited
to gain unauthorized root access to a system.
Solution Summary Top
4. Relief/Workaround
To work around the described issue, remove group and world write permissions from
affected files by running the following command as the root user:
# find /usr/sadm /usr/demo/wbem \( -perm -0020 -o -perm -0002 \) -exec chmod go-w
{} \;
5. Resolution
This issue is addressed in the following releases:
SPARC
Solaris 8 with patch 109134-27 or later
Intel
Solaris 8 with patch 109135-27 or later
This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun
Alert notification may contain information provided by third parties. The issues
described in this Sun Alert notification may or may not impact your system(s). Sun
makes no representations, warranties, or guarantees as to the information contained
herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT,
ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO
EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL
DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential information. It
is being provided to you pursuant to the provisions of your agreement to purchase
services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use.
This Sun Alert notification may only be used for the purposes contemplated by these
agreements.
Copyright 2001, 2002 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA
95054 U.S.A. All rights reserved.
[***** End Sun Alert ID: 48320 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Sun Microsystems for the
information contained in this bulletin.
_______________________________________________________________________________
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
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