Oracle Hyperion Essbase: Multiple vulnerabilities

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                         AUSCERT Security Bulletin

                               ASB-2017.0039
                Security Advisory: Oracle Hyperion Essbase
                               20 April 2017

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

Product:              Oracle Hyperion Essbase
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Denial of Service        -- Remote/Unauthenticated
                      Access Confidential Data -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
CVE Names:            CVE-2015-3237  
Member content until: Friday, May 19 2017

OVERVIEW

        A vulnerability has been identified in Oracle Hyperion Essbase, 
        version(s) 11.1.2.2. [1]


IMPACT

        The vendor has provided the following information:
        
        "CVE-2015-3237 6.5 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
        Easily exploitable vulnerability allows unauthenticated attacker 
        with network access via HTTP to compromise Oracle Hyperion Essbase.
        Successful attacks of this vulnerability can result in unauthorized
        read access to a subset of Oracle Hyperion Essbase accessible data 
        and unauthorized ability to cause a partial denial of service 
        (partial DOS) of Oracle Hyperion Essbase."[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 - April 2017
            http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html

        [2] Text Form of Oracle Critical Patch Update - April 2017 Risk
            Matrices
            https://www.oracle.com/technetwork/topics/security/cpuapr2017verbose-3236619.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.

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

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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                On call after hours for member emergencies only.
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