Oracle Hospitality Suite8: Access Confidential Data -- Existing Account

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                         AUSCERT Security Bulletin

                               ASB-2021.0158
              Oracle Hospitality Suite8 Critical Patch Update
                               21 July 2021

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

Product:          Oracle Hospitality Suite8
Operating System: Windows
                  UNIX variants (UNIX, Linux, OSX)
Impact/Access:    Access Confidential Data -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-21290  
Reference:        ASB-2021.0152
                  ASB-2021.0139
                  ESB-2021.1821

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Hospitality Suite8, versions 8.13, 8.14
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 1 new security patch for Oracle
        Hospitality Applications. This vulnerability is not remotely
        exploitable without authentication, i.e., may not be exploited over a
        network without requiring user credentials." [1]
        
        CVE-2021-21290
          5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        Supported versions that are affected are 8.13 and 8.14. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where Oracle Hospitality Suite8 executes to
        compromise Oracle Hospitality Suite8. Successful attacks of this
        vulnerability can result in unauthorized access to critical data or
        complete access to all Oracle Hospitality Suite8 accessible data.
         Affects:
         o Oracle Hospitality Suite8 8.13, 8.14


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 2021
            https://www.oracle.com/security-alerts/cpujul2021.html

        [2] Text Form of Oracle Critical Patch Update - July 2021 Risk Matrices
            https://www.oracle.com/security-alerts/cpujul2021verbose.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)
                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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