Oracle iLearning: Multiple vulnerabilities

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                         AUSCERT Security Bulletin

                               ASB-2021.0078
                  Oracle iLearning Critical Patch Update
                               21 April 2021

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

Product:          Oracle iLearning
Operating System: Windows
                  UNIX variants (UNIX, Linux, OSX)
Impact/Access:    Access Confidential Data -- Existing Account
                  Unauthorised Access      -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2020-17521  
Reference:        ASB-2021.0029
                  ESB-2020.4535

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle iLearning, versions 6.2, 6.3
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 1 new security patch for Oracle
        iLearning. This vulnerability is not remotely exploitable without
        authentication, i.e., may not be exploited over a network without
        requiring user credentials." [1]
        
        CVE-2020-17521
          5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        Supported versions that are affected are 6.2 and 6.3. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where Oracle iLearning executes to compromise
        Oracle iLearning. Successful attacks of this vulnerability can result
        in unauthorized access to critical data or complete access to all
        Oracle iLearning accessible data.
         Affects:
         o Oracle iLearning 6.2, 6.3


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 2021
            https://www.oracle.com/security-alerts/cpuapr2021.html

        [2] Text Form of Oracle Critical Patch Update - April 2021 Risk
            Matrices
            https://www.oracle.com/security-alerts/cpuapr2021verbose.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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