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                         AUSCERT Security Bulletin

                               ASB-2021.0085
         Oracle Communications Applications Critical Patch Updates
                               21 April 2021

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

Product:          Oracle Communications Calendar Server
                  Oracle Communications Contacts Server
                  Oracle Communications Design Studio
                  Oracle Communications Messaging Server
                  Oracle Communications MetaSolv Solution
                  Oracle Communications Unified Inventory Management
Operating System: UNIX variants (UNIX, Linux, OSX)
                  Windows
Impact/Access:    Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                  Modify Arbitrary Files          -- Remote/Unauthenticated
                  Denial of Service               -- Remote/Unauthenticated
                  Access Confidential Data        -- Remote/Unauthenticated
Resolution:       Patch/Upgrade
CVE Names:        CVE-2020-28052 CVE-2020-24750 CVE-2020-13954
                  CVE-2020-13871 CVE-2020-11987 CVE-2020-11979
                  CVE-2020-11612 CVE-2020-5421 CVE-2019-10086
                  CVE-2019-0228  
Reference:        ASB-2021.0083
                  ASB-2021.0082
                  ASB-2021.0081
                  ASB-2021.0077

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Communications Calendar Server, version 8.0
         o Oracle Communications Contacts Server, version 8.0
         o Oracle Communications Design Studio, version 7.4.2
         o Oracle Communications Messaging Server, versions 8.0.2, 8.1,
           8.1.0
         o Oracle Communications MetaSolv Solution, versions 6.3.0, 6.3.1
         o Oracle Communications Unified Inventory Management, versions
           7.3.4, 7.3.5, 7.4.0, 7.4.1
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 13 new security patches for
        Oracle Communications Applications. 12 of these vulnerabilities may
        be remotely exploitable without authentication, i.e., may be
        exploited over a network without requiring user credentials." [1]
        
        CVE-2020-11612
          9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 7.4.2. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Design Studio. Successful
        attacks of this vulnerability can result in takeover of Oracle
        Communications Design Studio.
         Affects:
         o Oracle Communications Design Studio 7.4.2
         o Oracle Communications Messaging Server 8.1.0
        
        CVE-2019-0228
          9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 8.1.0. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Messaging Server. Successful
        attacks of this vulnerability can result in takeover of Oracle
        Communications Messaging Server.
         Affects:
         o Oracle Communications Messaging Server 8.1.0
        
        CVE-2020-28052
          9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 8.0.2. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTPS to compromise Oracle Communications Messaging Server.
        Successful attacks of this vulnerability can result in takeover of
        Oracle Communications Messaging Server.
         Affects:
         o Oracle Communications Messaging Server 8.0.2
        
        CVE-2020-5421
          8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
        Supported versions that are affected are 7.3.4 and 7.3.5. Easily
        exploitable vulnerability allows low privileged attacker with network
        access via HTTP to compromise Oracle Communications Unified Inventory
        Management. Successful attacks of this vulnerability can result in
        takeover of Oracle Communications Unified Inventory Management.
         Affects:
         o Oracle Communications Unified Inventory Management 7.3.4, 7.3.5
        
        CVE-2020-24750
          8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 8.0. Difficult to exploit
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Calendar Server. Successful
        attacks of this vulnerability can result in takeover of Oracle
        Communications Calendar Server.
         Affects:
         o Oracle Communications Calendar Server 8.0
         o Oracle Communications Contacts Server 8.0
         o Oracle Communications Messaging Server 8.1
        
        CVE-2020-13871
          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 8.1. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Messaging Server. Successful
        attacks of this vulnerability can result in unauthorized ability to
        cause a hang or frequently repeatable crash (complete DOS) of Oracle
        Communications Messaging Server.
         Affects:
         o Oracle Communications Messaging Server 8.1
        
        CVE-2020-11979
          7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
        Supported versions that are affected are 7.4.0 and 7.4.1. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Unified
        Inventory Management. Successful attacks of this vulnerability can
        result in unauthorized creation, deletion or modification access to
        critical data or all Oracle Communications Unified Inventory
        Management accessible data.
         Affects:
         o Oracle Communications Unified Inventory Management 7.4.0, 7.4.1
        
        CVE-2019-10086
          7.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
        Supported versions that are affected are 7.3.4, 7.3.5, 7.4.0 and
        7.4.1. Easily exploitable vulnerability allows unauthenticated
        attacker with network access via HTTP to compromise Oracle
        Communications Unified Inventory Management. Successful attacks of
        this vulnerability can result in unauthorized update, insert or
        delete access to some of Oracle Communications Unified Inventory
        Management accessible data as well as unauthorized read access to a
        subset of Oracle Communications Unified Inventory Management
        accessible data and unauthorized ability to cause a partial denial of
        service (partial DOS) of Oracle Communications Unified Inventory
        Management.
         Affects:
         o Oracle Communications Unified Inventory Management 7.3.4,
           7.3.5, 7.4.0, 7.4.1
        
        CVE-2020-13954
          6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
        The supported version that is affected is 8.1. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Messaging Server. Successful
        attacks require human interaction from a person other than the
        attacker and while the vulnerability is in Oracle Communications
        Messaging Server, attacks may significantly impact additional
        products. Successful attacks of this vulnerability can result in
        unauthorized update, insert or delete access to some of Oracle
        Communications Messaging Server accessible data as well as
        unauthorized read access to a subset of Oracle Communications
        Messaging Server accessible data.
         Affects:
         o Oracle Communications Messaging Server 8.1
        
        CVE-2020-11987
          5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
        Supported versions that are affected are 6.3.0 and 6.3.1. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications MetaSolv
        Solution. Successful attacks of this vulnerability can result in
        unauthorized update, insert or delete access to some of Oracle
        Communications MetaSolv Solution accessible data.
         Affects:
         o Oracle Communications MetaSolv Solution 6.3.0, 6.3.1


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.

===========================================================================
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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                On call after hours for member emergencies only.
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