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AUSCERT External Security Bulletin Redistribution
ESB-2006.0609 -- [Solaris]
pkgadd(1M) May Set Incorrect Permissions if The pkgmap(4)
File Contains a "?" in The "Mode" Field
28 August 2006
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AusCERT Security Bulletin Summary
---------------------------------
Product: pkgadd
Publisher: Sun Microsystems
Operating System: Solaris 10
Impact: Inappropriate Access
Access: Existing Account
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102513-1
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Sun(sm) Alert Notification
* Sun Alert ID: 102513
* Synopsis: pkgadd(1M) May Set Incorrect Permissions if The
pkgmap(4) File Contains a "?" in The "Mode" Field
* Category: Security
* Product: Solaris 10 Operating System
* BugIDs: 6380672
* Avoidance: Patch
* State: Resolved
* Date Released: 25-Aug-2006
* Date Closed: 25-Aug-2006
* Date Modified:
1. Impact
If a patch or package is installed which contains a pkgmap(4) with a
"?" for the mode field of a file or directory onto a Solaris 10
system, pkgadd(1M) may incorrectly set the permissions of the
corresponding file or directory to either 755 or 777. The permissions
of 777 are a security risk since when applied to a file any user is
then able to modify that file and when applied to a directory all
files within that directory can modified by any user.
The expected behavior is:
1. Default permissions (644 for files, and 755 for directories) when
the file is not present in the system.
2. Existing file permissions unchanged, if the file already exists.
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 10 without patch 119254-26
x86 Platform
* Solaris 10 without patch 119255-26
Note 1: Solaris 8 and Solaris 9 are not impacted by this issue.
Note 2: This issue only occurs when the package being installed
includes a file or directory that meets the following criterion:
1. The pkgmap(4) entry for the file or directory contains a "?" in
the "mode" field.
The following two pkgmap(4) entries meet the above criterion:
1 d none /var/tmp/h ? ? ? 6092 63929 894644668
1 f none /var/tmp/xyz root other ? 6092 63929 894644668
3. Symptoms
When adding a package whose pkgmap(4) has a "?" entry in the file
permissions field, then pkgadd(1M) prompts:
Do you want to install these as setuid/setgid files [y,n,?,q]
Selecting "yes" will result in the file being installed with
permissions set to 755. Otherwise, it will be installed with
permissions set to 777.
4. Relief/Workaround
There is no workaround. Please see the "Resolution" section below.
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 10 with patch 119254-26 or later
x86 Platform
* Solaris 10 with patch 119255-26 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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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