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  • Squid mutiple vulnerabilities

    Squid mutiple vulnerabilities
    Several vulnerabilities have been found in Squid which may allow remote attackers to cause
    a denial of service attacks or to run arbitrary code.

    __________________________________________________ ____________________________

    SCO Security Advisory

    Subject: OpenServer 5.0.5 OpenServer 5.0.6 : Buffer overflows and other security vulnerabilities in Squid
    Advisory number: CSSA-2003-SCO.9
    Issue date: 2003 May 27
    Cross reference:
    __________________________________________________ ____________________________


    1. Problem De******ion

    Vulnerability in Squid related to proxy authentication
    credentials may allow remote web sites to obtain the user's
    proxy login and password.

    FTP proxy in Squid does not compare the IP addresses of
    control and data connections with the FTP server, which
    allows remote attackers to bypass firewall rules or spoof FTP
    server responses.

    Buffer overflows in Squid allow remote attackers to cause a
    denial of service (crash) and possibly execute arbitrary code
    (1) via the MSNT auth helper (msnt_auth) when using denyusers
    or allowusers files, (2) via the gopher client, or (3) via
    the FTP server directory listing parser when HTML output is
    generated.


    2. Vulnerable Supported Versions

    System Binaries
    ----------------------------------------------------------------------
    OpenServer 5.0.5 Squid distribution
    OpenServer 5.0.6 Squid distribution


    3. Solution

    The proper solution is to install the latest packages.


    4. OpenServer 5.0.5

    4.1 Location of Fixed Binaries

    ftp://ftp.sco.com/pub/updates/OpenSe...SSA-2003-SCO.9


    4.2 Verification

    MD5 (VOL.000.000) = a4abc782d87415df7369a0483e3b1554
    MD5 (VOL.000.001) = d91c192ac5ec45fe609d5a58fdf736b5
    MD5 (VOL.000.002) = af55795c6ebbe9012c9eb5d8b2f6e57a
    MD5 (VOL.000.003) = c5a74b7f6ab24a311b2fc24f01740ffe

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


    4.3 Installing Fixed Binaries

    Upgrade the affected binaries with the following sequence:

    1) Download the VOL* files to the /tmp directory

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


    5. OpenServer 5.0.6

    5.1 Location of Fixed Binaries

    ftp://ftp.sco.com/pub/updates/OpenSe...SSA-2003-SCO.9


    5.2 Verification

    MD5 (VOL.000.000) = a4abc782d87415df7369a0483e3b1554
    MD5 (VOL.000.001) = d91c192ac5ec45fe609d5a58fdf736b5
    MD5 (VOL.000.002) = af55795c6ebbe9012c9eb5d8b2f6e57a
    MD5 (VOL.000.003) = c5a74b7f6ab24a311b2fc24f01740ffe

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


    5.3 Installing Fixed Binaries

    Upgrade the affected binaries with the following sequence:

    1) Download the VOL* files to the /tmp directory

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


    6. References

    Specific references for this advisory:

    http://www.squid-cache.org/Advisories/SQUID-2002_3.txt
    http://cve.mitre.org/cgi-bin/cvename...=CVE-2002-0714
    http://cve.mitre.org/cgi-bin/cvename...=CAN-2002-0713
    http://cve.mitre.org/cgi-bin/cvename...=CAN-2002-0715

    SCO security resources:

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

    This security fix closes SCO incidents sr866632, fz521515,
    erg501628.


    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. Acknowledgements

    The Squid Team discovered and researched these vulnerabilities.
    http://blxk.shabgard.org
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