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                         AUSCERT Security Bulletin

                               ASB-2017.0181
                 Security Advisory: Oracle Virtualization
                              18 October 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Oracle Virtualization products
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Modify Arbitrary Files   -- Existing Account      
                      Denial of Service        -- Remote/Unauthenticated
                      Access Confidential Data -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
CVE Names:            CVE-2017-10428 CVE-2017-10408 CVE-2017-10407
                      CVE-2017-10392 CVE-2017-3733 CVE-2017-3167
Member content until: Friday, November 17 2017
Reference:            ESB-2017.2490
                      ESB-2017.2423
                      ESB-2017.0505
                      ESB-2017.0488.3

OVERVIEW

        Multiple vulnerabilities have been identified in 
         Oracle Secure Global Desktop (SGD), version  5.3
         Oracle VM VirtualBox, versions prior to  5.1.30
        [1]


IMPACT

        The vendor has provided the following information regarding
        to the vulnerabilities:
        
        "This Critical Patch Update contains 6 new security fixes for
        Oracle Virtualization.   2 of these vulnerabilities may be
        remotely exploitable without authentication,  i.e.,  may be
        exploited over a network without requiring user credentials."
        [1]
        
        
        "CVE-2017-3167
        
        7.4
        
        AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
        
        The supported version that is affected is 5.3. Difficult to
        exploit vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Secure Global
        Desktop (SGD).  Successful attacks of this vulnerability can
        result in  unauthorized access to critical data or complete
        access to all Oracle Secure Global Desktop (SGD) accessible
        data and unauthorized ability to cause a hang or frequently
        repeatable crash (complete DOS) of Oracle Secure Global
        Desktop (SGD).
        
        CVE-2017-10392
        
        7.3
        
        AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
        
        The supported version that is affected is Prior to 5.1.30.
        Easily exploitable vulnerability allows high privileged
        attacker with logon to the infrastructure where Oracle VM
        VirtualBox executes to compromise Oracle VM VirtualBox.
        While the vulnerability is in Oracle VM VirtualBox, attacks
        may significantly impact additional products.  Successful
        attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash
        (complete DOS) of Oracle VM VirtualBox as well as
        unauthorized update, insert or delete access to some of
        Oracle VM VirtualBox accessible data and  unauthorized read
        access to a subset of Oracle VM VirtualBox accessible data.
        
        CVE-2017-10407
        
        7.3
        
        AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
        
        The supported version that is affected is Prior to 5.1.30.
        Easily exploitable vulnerability allows high privileged
        attacker with logon to the infrastructure where Oracle VM
        VirtualBox executes to compromise Oracle VM VirtualBox.
        While the vulnerability is in Oracle VM VirtualBox, attacks
        may significantly impact additional products.  Successful
        attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash
        (complete DOS) of Oracle VM VirtualBox as well as
        unauthorized update, insert or delete access to some of
        Oracle VM VirtualBox accessible data and  unauthorized read
        access to a subset of Oracle VM VirtualBox accessible data.
        
        CVE-2017-10408
        
        7.3
        
        AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
        
        The supported version that is affected is Prior to 5.1.30.
        Easily exploitable vulnerability allows high privileged
        attacker with logon to the infrastructure where Oracle VM
        VirtualBox executes to compromise Oracle VM VirtualBox.
        While the vulnerability is in Oracle VM VirtualBox, attacks
        may significantly impact additional products.  Successful
        attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash
        (complete DOS) of Oracle VM VirtualBox as well as
        unauthorized update, insert or delete access to some of
        Oracle VM VirtualBox accessible data and  unauthorized read
        access to a subset of Oracle VM VirtualBox accessible data.
        
        CVE-2017-3733
        
        5.9
        
        AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
        
        The supported version that is affected is Prior to 5.1.30.
        Difficult to exploit vulnerability allows unauthenticated
        attacker with network access via TLS to compromise Oracle VM
        VirtualBox.  Successful attacks of this vulnerability can
        result in  unauthorized access to critical data or complete
        access to all Oracle VM VirtualBox accessible data.
        
        CVE-2017-10428
        
        5.0
        
        AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
        
        The supported version that is affected is Prior to 5.1.30.
        Difficult to exploit vulnerability allows high privileged
        attacker with logon to the infrastructure where Oracle VM
        VirtualBox executes to compromise Oracle VM VirtualBox.
        While the vulnerability is in Oracle VM VirtualBox, attacks
        may significantly impact additional products.  Successful
        attacks of this vulnerability can result in  unauthorized
        update, insert or delete access to some of Oracle VM
        VirtualBox accessible data as well as  unauthorized read
        access to a subset of Oracle VM VirtualBox accessible data
        and unauthorized ability to cause a partial denial of
        service (partial DOS) of Oracle VM VirtualBox."
        [2]


MITIGATION

        Oracle states:
        
        "Due to the threat posed by a successful attack, Oracle
        strongly recommends that customers apply CPU fixes as soon
        as possible. Until you apply the CPU fixes, it may be
        possible to reduce the risk of successful attack by blocking
        network protocols required by an attack. For attacks that
        require certain privileges or access to certain packages,
        removing the privileges or the ability to access the
        packages from users that do not need the privileges may help
        reduce the risk of successful attack. Both approaches may
        break application functionality, so Oracle strongly
        recommends that customers test changes on non-production
        systems. Neither approach should be considered a long-term
        solution as neither corrects the underlying problem." [1]


REFERENCES

        [1] Oracle Critical Patch Update Advisory - October 2017
            http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

        [2] Text Form of Oracle Critical Patch Update - October 2017 Risk
            Matrices
            http://www.oracle.com/technetwork/security-advisory/cpuoct2017verbose-3236627.html

AusCERT has made every effort to ensure that the information contained
in this document is accurate.  However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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