__________________________________________________________

                       The U.S. Department of Energy
                   Computer Incident Advisory Capability
                           ___  __ __    _     ___
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                             INFORMATION BULLETIN

               Sun cachefs Patches May Overwrite inetd.conf File
                             [Sun Alert ID: 56300]

August 19, 2003 22:00 GMT                                         Number N-134
______________________________________________________________________________
PROBLEM:       The inetd.conf file may get overwritten during installation of 
               certain cachefs patches, changing the system configuration back 
               to the default. 
PLATFORM:      Solaris 2.6 and 7 systems 
DAMAGE:        The resulting new "inetd.conf" file may re-enable services that 
               were previously disabled, such as ftp and security features 
               like TCPwrappers may be disabled. 
SOLUTION:      Apply patches as stated in Sun's Alert Notification. 
______________________________________________________________________________
VULNERABILITY  The risk is LOW. Services previously disabled can be reenabled. 
ASSESSMENT:    Intruders would have to scan the system to find the open 
               services, which are not necessarily vulnerable to attack. 
______________________________________________________________________________
LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/n-134.shtml 
 ORIGINAL BULLETIN:                                                           
                     http://www.sunsolve.sun.com/pub-cgi/retrieve.pl?doc
                              =fsalert%2F56300&zone_32=category%3Asecurity 
______________________________________________________________________________

[***** Start Sun Alert ID: 56300 *****]

Sun(sm) Alert Notification 

Sun Alert ID: 56300 
Synopsis: Solaris 2.6 and 7 cachefs Patches May Overwrite the inetd.conf(4) 
File 
Category: Security 
Product: Solaris 
BugIDs: 4839365 
Avoidance: Patch 
State: Resolved 
Date Released: 18-Aug-2003 
Date Closed: 18-Aug-2003 
Date Modified: 

1. Impact 
On Solaris 2.6 and Solaris 7 systems, the inetd.conf(4) file may get 
erroneously overwritten during installation of certain cachefs patches. The 
resulting new "inetd.conf" file may re-enable services that were previously 
disabled (e.g. for security reasons). 

2. Contributing Factors 
This issue can occur in the following releases: 

SPARC Platform 

Solaris 2.6 with patch 105693-13 and without patch 105693-14 
Solaris 7 with patch 108800-02 and without patch 108800-03 

x86 Platform 

Solaris 2.6 with patch 105694-13 and without patch 105694-14 
Solaris 7 with patch 108801-02 and without patch 108801-03 

Note: Solaris 8 and 9 are not affected by this issue. The cachefs patches are 
part of the current "Recommended & Security Patches" cluster. 

3. Symptoms 
After installation of one of the above listed patches, some services may be 
enabled which were previously disabled. The symptoms experienced will depend 
upon which services had been disabled. 

Solution Summary Top 

4. Relief/Workaround 
To work around the described issue, make a backup copy of the existing 
inetd.conf(4) file before installing the cachefs patches and then restore the 
inetd.conf(4) file after patch installation. For example: 

    # cp /etc/inet/inetd.conf /etc/inetd/inetd.conf.prepatch
    # patchadd <cachefs patch>
    # cp /etc/inet/inetd.conf.prepatch /etc/inetd/inetd.conf  
          
If the Solaris 2.6 or 7 cachefs patches have already been installed on the 
system, review the inetd.conf(4) file for entries which may have been changed
by the patch installation. 

5. Resolution 
This issue is addressed in the following releases: 

SPARC Platform 

Solaris 2.6 with patch 105693-14 or later 
Solaris 7 with patch 108800-03 or later 

x86 Platform 

Solaris 2.6 with patch 105694-14 or later 
Solaris 7 with patch 108801-03 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 2000-2003 Sun Microsystems, Inc., 4150 Network Circle, 
Santa Clara, CA 95054 U.S.A. All rights reserved. 

[***** End Sun Alert ID: 56300 *****]

_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Sun Microsystems, Inc. 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
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