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                         AUSCERT Security Bulletin

                               ASB-2021.0213
         Oracle Communications Applications Critical Patch Update
                              20 October 2021

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

Product:          Oracle Communications Billing and Revenue Management
                  Oracle Communications BRM - Elastic Charging Engine
                  Oracle Communications Calendar Server
                  Oracle Communications Design Studio
                  Oracle Communications Messaging Server
                  Oracle Communications MetaSolv Solution
                  Oracle Communications Offline Mediation Controller
                  Oracle Communications Pricing Design Center
Operating System: Windows
                  UNIX variants (UNIX, Linux, OSX)
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-2021-36090 CVE-2021-33037 CVE-2021-31812
                  CVE-2021-30468 CVE-2021-29425 CVE-2021-28657
                  CVE-2021-23337 CVE-2021-22118 CVE-2021-21409
                  CVE-2021-3177 CVE-2021-2351 CVE-2020-25648
                  CVE-2020-17521 CVE-2020-6950 CVE-2019-10086
Reference:        ASB-2021.0210
                  ASB-2021.0208
                  ASB-2021.0206
                  ASB-2021.0205

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Communications Billing and Revenue Management, versions
           7.5.0.0.0, 12.0.0.3.0
         o Oracle Communications BRM - Elastic Charging Engine, version
           12.0.0.3
         o Oracle Communications Calendar Server, version 8.0.0.6.0
         o Oracle Communications Design Studio, version 7.4.2
         o Oracle Communications Messaging Server, version 8.1
         o Oracle Communications MetaSolv Solution, version 6.3.1
         o Oracle Communications Offline Mediation Controller, version
           12.0.0.3.0
         o Oracle Communications Pricing Design Center, version 12.0.0.3.0
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 19 new security patches for
        Oracle Communications Applications. 14 of these vulnerabilities may
        be remotely exploitable without authentication, i.e., may be
        exploited over a network without requiring user credentials." [1]
        
        CVE-2021-3177
          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 12.0.0.3.0. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Pricing
        Design Center. Successful attacks of this vulnerability can result in
        takeover of Oracle Communications Pricing Design Center.
         Affects:
         o Oracle Communications Pricing Design Center 12.0.0.3.0
        
        CVE-2021-2351
          8.3 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
        The supported version that is affected is 6.3.1. Difficult to exploit
        vulnerability allows unauthenticated attacker with network access via
        Oracle Net to compromise Oracle Communications MetaSolv Solution.
        Successful attacks require human interaction from a person other than
        the attacker and while the vulnerability is in Oracle Communications
        MetaSolv Solution, attacks may significantly impact additional
        products. Successful attacks of this vulnerability can result in
        takeover of Oracle Communications MetaSolv Solution.
         Affects:
         o Oracle Communications MetaSolv Solution 6.3.1
        
        CVE-2021-22118
          7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 12.0.0.3. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where Oracle Communications BRM - Elastic
        Charging Engine executes to compromise Oracle Communications BRM -
        Elastic Charging Engine. Successful attacks of this vulnerability can
        result in takeover of Oracle Communications BRM - Elastic Charging
        Engine.
         Affects:
         o Oracle Communications BRM - Elastic Charging Engine 12.0.0.3
        
        CVE-2021-36090
          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-2021-30468
          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-2020-25648
          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 12.0.0.3.0. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTPS to compromise Oracle Communications Offline
        Mediation Controller. Successful attacks of this vulnerability can
        result in unauthorized ability to cause a hang or frequently
        repeatable crash (complete DOS) of Oracle Communications Offline
        Mediation Controller.
         Affects:
         o Oracle Communications Offline Mediation Controller 12.0.0.3.0
        
        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 7.5.0.0.0 and 12.0.0.3.0.
        Easily exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Billing
        and Revenue Management. Successful attacks of this vulnerability can
        result in unauthorized update, insert or delete access to some of
        Oracle Communications Billing and Revenue Management accessible data
        as well as unauthorized read access to a subset of Oracle
        Communications Billing and Revenue Management accessible data and
        unauthorized ability to cause a partial denial of service (partial
        DOS) of Oracle Communications Billing and Revenue Management.
         Affects:
         o Oracle Communications Billing and Revenue Management 7.5.0.0.0,
           12.0.0.3.0
        
        CVE-2021-23337
          7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
        The supported version that is affected is 7.4.2. Easily exploitable
        vulnerability allows high privileged 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
        
        CVE-2020-6950
          6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
        The supported version that is affected is 12.0.0.3.0. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Pricing
        Design Center. Successful attacks require human interaction from a
        person other than the attacker. Successful attacks of this
        vulnerability can result in unauthorized access to critical data or
        complete access to all Oracle Communications Pricing Design Center
        accessible data.
         Affects:
         o Oracle Communications Pricing Design Center 12.0.0.3.0
        
        CVE-2021-21409
          5.9 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
        The supported version that is affected is 12.0.0.3. Difficult to
        exploit vulnerability allows unauthenticated attacker with network
        access via HTTP to compromise Oracle Communications BRM - Elastic
        Charging Engine. Successful attacks of this vulnerability can result
        in unauthorized creation, deletion or modification access to critical
        data or all Oracle Communications BRM - Elastic Charging Engine
        accessible data.
         Affects:
         o Oracle Communications BRM - Elastic Charging Engine 12.0.0.3
         o Oracle Communications Design Studio 7.4.2
         o Oracle Communications Messaging Server 8.1
        
        CVE-2020-17521
          5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        The supported version that is affected is 12.0.0.3. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where Oracle Communications BRM - Elastic
        Charging Engine executes to compromise Oracle Communications BRM -
        Elastic Charging Engine. Successful attacks of this vulnerability can
        result in unauthorized access to critical data or complete access to
        all Oracle Communications BRM - Elastic Charging Engine accessible
        data.
         Affects:
         o Oracle Communications BRM - Elastic Charging Engine 12.0.0.3
        
        CVE-2021-31812
          5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
        The supported version that is affected is 8.1. Easily exploitable
        vulnerability allows unauthenticated attacker with logon to the
        infrastructure where Oracle Communications Messaging Server executes
        to compromise Oracle Communications Messaging Server. Successful
        attacks require human interaction from a person other than the
        attacker. 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-2021-28657
          5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
        The supported version that is affected is 8.1. Easily exploitable
        vulnerability allows unauthenticated attacker with logon to the
        infrastructure where Oracle Communications Messaging Server executes
        to compromise Oracle Communications Messaging Server. Successful
        attacks require human interaction from a person other than the
        attacker. 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-2021-29425
          5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
        The supported version that is affected is 8.0.0.6.0. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Calendar
        Server. Successful attacks of this vulnerability can result in
        unauthorized read access to a subset of Oracle Communications
        Calendar Server accessible data.
         Affects:
         o Oracle Communications Calendar Server 8.0.0.6.0
         o Oracle Communications Messaging Server 8.1
         o Oracle Communications MetaSolv Solution 6.3.1
        
        CVE-2021-33037
          5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
        The supported version that is affected is 12.0.0.3.0. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Pricing
        Design Center. Successful attacks of this vulnerability can result in
        unauthorized update, insert or delete access to some of Oracle
        Communications Pricing Design Center accessible data.
         Affects:
         o Oracle Communications Pricing Design Center 12.0.0.3.0


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 - October 2021
            https://www.oracle.com/security-alerts/cpuoct2021.html

        [2] Text Form of Oracle Critical Patch Update - October 2021 Risk
            Matrices
            https://www.oracle.com/security-alerts/cpuoct2021verbose.html

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in this document is accurate.  However, the decision to use the information
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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
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