UPDATE Oracle Siebel CRM: Multiple vulnerabilities

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                         AUSCERT Security Bulletin

                              ASB-2017.0112.2
                   Security Advisory: Oracle Siebel CRM
                               20 July 2017

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        AusCERT Security Bulletin Summary
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Product:              Oracle Siebel CRM
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Modify Arbitrary Files   -- Remote with User Interaction
                      Delete Arbitrary Files   -- Remote with User Interaction
                      Access Confidential Data -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2017-10049  
Member content until: Saturday, August 19 2017

Revision History:     July 20 2017: fixed Operating Systems
                      July 20 2017: Initial Release

OVERVIEW

        Multiple vulnerabilities have been identified in Oracle Siebel CRM 
        products:
        
         - Siebel Applications, versions 16.0, 17.0 [1]


IMPACT

        The vendor has provided the following information regarding to the 
        vulnerabilities.
        
        "This Critical Patch Update contains 1 new security fix for Oracle 
        Siebel CRM. This vulnerability is remotely exploitable without 
        authentication, i.e., may be exploited over a network without 
        requiring user credentials." [1]
        
        "CVE-2017-10049
        
        6.1
        
        AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
        
        Supported versions that are affected are 16.0 and 17.0. Easily 
        exploitable vulnerability allows unauthenticated attacker with 
        network access via HTTP to compromise Siebel Core CRM. Successful 
        attacks require human interaction from a person other than the 
        attacker and while the vulnerability is in Siebel Core CRM, attacks
        may significantly impact additional products. Successful attacks of
        this vulnerability can result in unauthorized update, insert or 
        delete access to some of Siebel Core CRM accessible data as well as
        unauthorized read access to a subset of Siebel Core CRM accessible 
        data." [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 - July 2017
            http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

        [2] Text Form of Oracle Critical Patch Update - July 2017 Risk Matrices
            http://www.oracle.com/technetwork/security-advisory/cpujul2017verbose-3236625.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
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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