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AUSCERT External Security Bulletin Redistribution
ESB-2005.0620 -- Sun Alert Notification 101842
Security Vulnerability in The "printd" Daemon
10 August 2005
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AusCERT Security Bulletin Summary
---------------------------------
Product: printd
Publisher: Sun Microsystems
Operating System: Solaris
Impact: Delete Arbitrary Files
Access: Remote/Unauthenticated
Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-101842-1
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Sun(sm) Alert Notification
* Sun Alert ID: 101842
* Synopsis: Security Vulnerability in The "printd" Daemon
* Category: Security
* Product: Solaris 9 Operating System, Solaris 10 Operating System,
Solaris 7 Operating System, Solaris 8 Operating System
* BugIDs: 6289134
* Avoidance: Patch
* State: Resolved
* Date Released: 08-Aug-2005
* Date Closed: 08-Aug-2005
* Date Modified:
1. Impact
A local or remote unprivileged user may be able to remove any file on
the system due to a security vulnerability in the "printd" daemon.
Sun acknowledges, with thanks, H.D. Moore of Metaspoilt.com, for
bringing this issue to our attention.
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 7 without patch 107115-19
* Solaris 8 without patch 109320-16
* Solaris 9 without patch 113329-15
* Solaris 10 without patch 120467-01
x86 Platform
* Solaris 7 without patch 107116-19
* Solaris 8 without patch 109321-16
* Solaris 9 without patch 114980-16
* Solaris 10 without patch 120468-01
This issue only occurs on systems that have the printer package
"SUNWpcu" installed.
3. Symptoms
There are no reliable symptoms that would indicate the described issue
has been exploited.
4. Relief/Workaround
To work around the described issue, one of the following options can
be applied:
Option 1:
Temporarily rename the following file used by the "printd" daemon:
/usr/lib/print/bsd-adaptor/bsd_cascade.so.1
Note: Renaming this file will cause systems configured to use the
cascade spooler to fail to send print requests to the configured
remote host.
Option 2:
Disable the BSD print protocol adaptor (in.lpd(1M)) by doing the
following:
For pre-Solaris 10 systems:
1. Edit the "/etc/inetd.conf" file and comment out the following line
by adding the "#" symbol to the beginning of the line as shown:
#printer stream tcp6 nowait root /usr/lib/print/in.lpd in.lpd
2. Tell the inetd(1M) process to reread the newly modified
"/etc/inetd.conf" file by sending it a hangup signal, SIGHUP:
# /usr/bin/pkill -HUP inetd
For systems running Solaris 10 or above:
Execute the following command:
# svcadm disable svc:/application/print/rfc1179
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 7 with patch 107115-19 or later
* Solaris 8 with patch 109320-16 or later
* Solaris 9 with patch 113329-15 or later
* Solaris 10 with patch 120467-01 or later
x86 Platform
* Solaris 7 with patch 107116-19 or later
* Solaris 8 with patch 109321-16 or later
* Solaris 9 with patch 114980-16 or later
* Solaris 10 with patch 120468-01 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 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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