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                         AUSCERT Security Bulletin

                               ASB-2018.0261
                             Oracle Siebel CRM
                              17 October 2018

===========================================================================

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

Product:              Oracle Siebel CRM
Operating System:     Windows
                      UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                      Modify Arbitrary Files          -- Remote with User Interaction
                      Access Confidential Data        -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2018-3059 CVE-2018-1305 CVE-2017-5645
Member content until: Friday, November 16 2018
Reference:            ASB-2018.0179
                      ASB-2018.0174
                      ASB-2018.0172
                      ESB-2018.2665
                      ESB-2018.2401
                      ESB-2018.2335

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Siebel Applications, versions  18.7,  18.8,  18.9
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 3 new security fixes for Oracle
        Siebel CRM. 2 of these vulnerabilities may be remotely exploitable
        without authentication, i.e., may be exploited over a network
        without requiring user credentials." [1]
        
        "CVE-2017-5645
        
        9.8
        
        AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
        
        Vulnerability in the Siebel UI Framework component of Oracle Siebel
        CRM (subcomponent: EAI (Apache Log4j)). Supported versions that are
        affected are 18.7, 18.8 and 18.9. Easily exploitable vulnerability 
        allows unauthenticated attacker with network access via HTTP to 
        compromise Siebel UI Framework. Successful attacks of this 
        vulnerability can result in takeover of Siebel UI Framework.
        
        CVE-2018-1305
        
        6.5
        
        AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        
        Vulnerability in the Siebel Apps - Marketing component of Oracle 
        Siebel CRM (subcomponent: Mktg/Campaign Mgmt (Apache Tomcat)). 
        Supported versions that are affected are 18.7, 18.8 and 18.9. Easily
        exploitable vulnerability allows low privileged attacker with 
        network access via HTTP to compromise Siebel Apps - Marketing. 
        Successful attacks of this vulnerability can result in unauthorized
        access to critical data or complete access to all Siebel Apps - 
        Marketing accessible data.
        
        CVE-2018-3059
        
        6.1
        
        AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
        
        Vulnerability in the Siebel UI Framework component of Oracle Siebel
        CRM (subcomponent: UIF Open UI). Supported versions that are 
        affected are 18.7, 18.8 and 18.9. Easily exploitable vulnerability 
        allows unauthenticated attacker with network access via HTTP to 
        compromise Siebel UI Framework. Successful attacks require human 
        interaction from a person other than the attacker and while the 
        vulnerability is in Siebel UI Framework, attacks may significantly 
        impact additional products. Successful attacks of this vulnerability
        can result in unauthorized update, insert or delete access to some 
        of Siebel UI Framework accessible data as well as unauthorized read
        access to a subset of Siebel UI Framework 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 - October 2018
            https://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

        [2] Text Form of Oracle Critical Patch Update - October 2018 Risk
            Matrices
            https://www.oracle.com/technetwork/security-advisory/cpuoct2018verbose-5170927.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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