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                                    CERT-Renater

                         Note d'Information No. 2006/VULN467
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DATE                      : 28/08/2006

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris 10.

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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
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    notification may only be used for the purposes contemplated by these
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    Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
    Clara, CA 95054 U.S.A. All rights reserved

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