OpenServer 5.0.6 OpenServer 5.0.7 : nwprint privilege escalation

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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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