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OpenServer 5.0.6 OpenServer 5.0.7 : nwprint privilege escalation
From: please_reply_to_security () sco com
Date: Wed, 25 May 2005 13:21:41 -0700


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______________________________________________________________________________

                        SCO Security Advisory

Subject:                OpenServer 5.0.6 OpenServer 5.0.7 : nwprint privilege escalation
Advisory number:        SCOSA-2005.26
Issue date:             2005 May 25
Cross reference:        sr893493 fz531721 erg712826 CAN-2005-0993
______________________________________________________________________________


1. Problem Description

        Buffer overflow in nwprint allows local users to execute
        arbitrary code via a long command line argument. 

        The Common Vulnerabilities and Exposures project (cve.mitre.org) 
        has assigned the name CAN-2005-0993 to this issue.


2. Vulnerable Supported Versions

        System                          Binaries
        ----------------------------------------------------------------------
        OpenServer 5.0.6                /usr/lib/nucrt/bin/nwprint
                                        /usr/lib/nucrt/bin/nwlpstat
                                        /etc/nwcleand
                                        /usr/lib/nucrt/bin/nwcancel
                                        /usr/lib/nucrt/bin/nwlpadmin

        OpenServer 5.0.7                See the Maintenance Pack 3 Release Notes


3. Solution

        The proper solution is to install the latest packages.

4. OpenServer 5.0.6

        4.1 First install oss646c or later

        4.2 Location of oss646c

        ftp://ftp.sco.com/pub/openserver5/oss646c/

        4.3 Verification of oss646c

        MD5 (VOL.000.000) = f19b6c6949f615316bfb075d249989e8
        MD5 (VOL.000.001) = 341ff8553aecd2c7b0c2beaf83030d0f
        MD5 (VOL.000.002) = 6e46708ad8029e12280d4f9ac60ab814
        MD5 (VOL.000.003) = 2868b64a6a6db742adb3b485be645d7e
        MD5 (VOL.000.004) = 1696fe1db9bb063827ee5e76e58dff84
        MD5 (VOL.000.005) = f39da342f8af72fcaccdf478dca04109
        MD5 (VOL.000.006) = 2b31611c8af7d2e7910d6e8e3cf701a6
        MD5 (VOL.000.007) = d0175c0f4e3ed29435b1eab95609f8f4
        MD5 (VOL.000.008) = aa9e8a525c341fed077f981b1dacb486
        MD5 (VOL.000.009) = 8e023af67b57507824406bdda322079a
        MD5 (VOL.000.010) = 2b46e8adba8ae0b64109f2069da978a2

        4.4 Location of Fixed Binaries

        ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2005.26

        4.5 Verification

        MD5 (VOL.000.000) = 83798688f4e5ac7f9e8c9602df8fa575

        md5 is available for download from
                ftp://ftp.sco.com/pub/security/tools

        4.6 Installing Fixed Binaries

        Upgrade the affected binaries with the following sequence:

        1) Download the VOL* files to a directory

        2) Run the custom command, specify an install from media
        images, and specify the directory as the location of the
        images.


5. OpenServer 5.0.7

        5.1 Location of Fixed Binaries

        Maintenance Pack 3

        http://www.sco.com/support/update/download/osr507list.html

        5.2 Verification

        MD5 (507mp3_vol.tar) = c927aefdd50b50aca5d29e08c1562aec

        md5 is available for download from
                ftp://ftp.sco.com/pub/security/tools

        5.3 Installing Fixed Binaries

        See the Maintenance Pack 3 Release Notes

        ftp://ftp.sco.com/pub/openserver5/507/mp/mp3/osr507mp3.html
        or
        ftp://ftp.sco.com/pub/openserver5/507/mp/mp3/osr507mp3.txt

6. References

        Specific references for this advisory:
                http://lists.seifried.org/pipermail/security/2005-April/007678.html 
                http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0993

        SCO security resources:
                http://www.sco.com/support/security/index.html

        SCO security advisories via email
                http://www.sco.com/support/forums/security.html

        This security fix closes SCO incidents sr893493 fz531721
        erg712826.


7. Disclaimer

        SCO is not responsible for the misuse of any of the information
        we provide on this website and/or through our security
        advisories. Our advisories are a service to our customers
        intended to promote secure installation and use of SCO
        products.


8. Acknowledgments

        SCO would like to thank pasquale minervini

______________________________________________________________________________

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