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                         AUSCERT Security Bulletin

                               ASB-2022.0096
           Oracle Hospitality Applications Critical Patch Update
                               20 April 2022

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

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

Product:          Oracle Hospitality Suite8
                  Oracle Hospitality Token Proxy Service
                  Oracle Payment Interface
Operating System: UNIX variants (UNIX, Linux, OSX)
                  Windows
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-44832 CVE-2021-41184 CVE-2021-37714
                  CVE-2020-13936  

Comment: CVSS (Max):  8.8 CVE-2020-13936 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Hospitality Suite8, versions 8.10.2, 8.11.0-8.14.0
         o Oracle Hospitality Token Proxy Service, version 19.2
         o Oracle Payment Interface, versions 19.1, 20.3
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 6 new security patches for
        Oracle Hospitality Applications. 2 of these vulnerabilities may be
        remotely exploitable without authentication, i.e., may be exploited
        over a network without requiring user credentials." [1]
        
        CVE-2020-13936
          8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 19.2. Easily exploitable
        vulnerability allows low privileged attacker with network access via
        HTTP to compromise Oracle Hospitality Token Proxy Service. Successful
        attacks of this vulnerability can result in takeover of Oracle
        Hospitality Token Proxy Service.
         Affects:
         o Oracle Hospitality Token Proxy Service 19.2
        
        CVE-2021-37714
          7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
        The supported version that is affected is 19.2. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Hospitality Token Proxy Service. Successful
        attacks of this vulnerability can result in unauthorized ability to
        cause a hang or frequently repeatable crash (complete DOS) of Oracle
        Hospitality Token Proxy Service.
         Affects:
         o Oracle Hospitality Token Proxy Service 19.2
        
        CVE-2021-44832
          6.6 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
        Supported versions that are affected are 8.13.0 and 8.14.0. Difficult
        to exploit vulnerability allows high privileged attacker with network
        access via TCP to compromise Oracle Hospitality Suite8. Successful
        attacks of this vulnerability can result in takeover of Oracle
        Hospitality Suite8.
         Affects:
         o Oracle Hospitality Suite8 8.13.0, 8.14.0
         o Oracle Hospitality Token Proxy Service 19.2
         o Oracle Payment Interface 19.1, 20.3
        
        CVE-2021-41184
          6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
        Supported versions that are affected are 8.10.2 and 8.11.0-8.14.0.
        Easily exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Hospitality Suite8.
        Successful attacks require human interaction from a person other than
        the attacker and while the vulnerability is in Oracle Hospitality
        Suite8, attacks may significantly impact additional products (scope
        change). Successful attacks of this vulnerability can result in
        unauthorized update, insert or delete access to some of Oracle
        Hospitality Suite8 accessible data as well as unauthorized read
        access to a subset of Oracle Hospitality Suite8 accessible data.
         Affects:
         o Oracle Hospitality Suite8 8.10.2, 8.11.0-8.14.0


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 2022
            https://www.oracle.com/security-alerts/cpuapr2022.html

        [2] Text Form of Oracle Critical Patch Update - April 2022 Risk
            Matrices
            https://www.oracle.com/security-alerts/cpuapr2022verbose.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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