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                         AUSCERT Security Bulletin

                               ASB-2021.0014
                Oracle Communications Critical Patch Update
                              21 January 2021

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

Product:              Oracle Communications Application Session Controller
                      Oracle Communications Diameter Signaling Router (DSR)
                      Oracle Communications Element Manager
                      Oracle Communications Operations Monitor
                      Oracle Communications Performance Intelligence Center (PIC) Software
                      Oracle Communications Session Report Manager
                      Oracle Enterprise Communications Broker
                      Oracle SD-WAN Edge
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-2020-27216 CVE-2020-24750 CVE-2020-14147
                      CVE-2020-11080 CVE-2020-10723 CVE-2020-5421
                      CVE-2019-17566 CVE-2019-10086 CVE-2019-7164
                      CVE-2019-1559  
Member content until: Saturday, February 20 2021
Reference:            ASB-2020.0180
                      ASB-2020.0025
                      ESB-2020.4326
                      ESB-2020.3095

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o Oracle Communications Application Session Controller, version
           3.9m0p2
         o Oracle Communications Diameter Signaling Router (DSR), versions
           8.0.0-8.2.2
         o Oracle Communications Element Manager, versions 8.2.1.0-8.2.2.1
         o Oracle Communications Operations Monitor, versions 3.4, 4.1,
           4.2, 4.3
         o Oracle Communications Performance Intelligence Center (PIC)
           Software, version 10.4.0.2
         o Oracle Communications Session Report Manager, versions
           8.2.1.0-8.2.2.1
         o Oracle Enterprise Communications Broker, versions 3.1, 3.2
         o Oracle SD-WAN Edge, version 9.0
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 12 new security patches for
        Oracle Communications. 7 of these vulnerabilities may be remotely
        exploitable without authentication, i.e., may be exploited over a
        network without requiring user credentials." [1]
        
        CVE-2019-7164
          9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
        Supported versions that are affected are 4.2 and 4.3. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications
        Operations Monitor. Successful attacks of this vulnerability can
        result in takeover of Oracle Communications Operations Monitor.
         Affects:
         o Oracle Communications Operations Monitor 4.2, 4.3
        
        CVE-2020-24750
          8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
        Supported versions that are affected are 8.0.0-8.2.2. Difficult to
        exploit vulnerability allows unauthenticated attacker with network
        access via HTTP to compromise Oracle Communications Diameter
        Signaling Router (DSR). Successful attacks of this vulnerability can
        result in takeover of Oracle Communications Diameter Signaling Router
        (DSR).
         Affects:
         o Oracle Communications Diameter Signaling Router (DSR)
           8.0.0-8.2.2
        
        CVE-2020-27216
          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 3.9m0p2. Easily exploitable
        vulnerability allows low privileged attacker with logon to the
        infrastructure where Oracle Communications Application Session
        Controller executes to compromise Oracle Communications Application
        Session Controller. Successful attacks of this vulnerability can
        result in takeover of Oracle Communications Application Session
        Controller.
         Affects:
         o Oracle Communications Application Session Controller 3.9m0p2
         o Oracle Communications Element Manager 8.2.1.0-8.2.2.1
        
        CVE-2020-14147
          7.7 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
        Supported versions that are affected are 3.4, 4.1, 4.2 and 4.3.
        Easily exploitable vulnerability allows low privileged attacker with
        network access via HTTP to compromise Oracle Communications
        Operations Monitor. While the vulnerability is in Oracle
        Communications Operations Monitor, attacks may significantly impact
        additional products. Successful attacks of this vulnerability can
        result in unauthorized ability to cause a hang or frequently
        repeatable crash (complete DOS) of Oracle Communications Operations
        Monitor.
         Affects:
         o Oracle Communications Operations Monitor 3.4, 4.1, 4.2, 4.3
        
        CVE-2019-17566
          7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
        The supported version that is affected is 3.9m0p2. Easily exploitable
        vulnerability allows unauthenticated attacker with network access via
        HTTP to compromise Oracle Communications Application Session
        Controller. Successful attacks of this vulnerability can result in
        unauthorized creation, deletion or modification access to critical
        data or all Oracle Communications Application Session Controller
        accessible data.
         Affects:
         o Oracle Communications Application Session Controller 3.9m0p2
        
        CVE-2020-11080
          7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
        Supported versions that are affected are 3.1 and 3.2. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Enterprise
        Communications Broker. Successful attacks of this vulnerability can
        result in unauthorized ability to cause a hang or frequently
        repeatable crash (complete DOS) of Oracle Enterprise Communications
        Broker.
         Affects:
         o Oracle Enterprise Communications Broker 3.1, 3.2
        
        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 8.0.0-8.2.2. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise Oracle Communications Diameter
        Signaling Router (DSR). Successful attacks of this vulnerability can
        result in unauthorized update, insert or delete access to some of
        Oracle Communications Diameter Signaling Router (DSR) accessible data
        as well as unauthorized read access to a subset of Oracle
        Communications Diameter Signaling Router (DSR) accessible data and
        unauthorized ability to cause a partial denial of service (partial
        DOS) of Oracle Communications Diameter Signaling Router (DSR).
         Affects:
         o Oracle Communications Diameter Signaling Router (DSR)
           8.0.0-8.2.2
         o Oracle SD-WAN Edge 9.0
        
        CVE-2020-10723
          6.7 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
        Supported versions that are affected are 3.1 and 3.2. Easily
        exploitable vulnerability allows high privileged attacker with logon
        to the infrastructure where Oracle Enterprise Communications Broker
        executes to compromise Oracle Enterprise Communications Broker.
        Successful attacks of this vulnerability can result in takeover of
        Oracle Enterprise Communications Broker.
         Affects:
         o Oracle Enterprise Communications Broker 3.1, 3.2
        
        CVE-2020-5421
          6.5 AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:N
        Supported versions that are affected are 8.2.1.0-8.2.2.1. Difficult
        to exploit vulnerability allows low privileged attacker with network
        access via HTTP to compromise Oracle Communications Session Report
        Manager. Successful attacks require human interaction from a person
        other than the attacker and while the vulnerability is in Oracle
        Communications Session Report Manager, attacks may significantly
        impact additional products. Successful attacks of this vulnerability
        can result in unauthorized creation, deletion or modification access
        to critical data or all Oracle Communications Session Report Manager
        accessible data as well as unauthorized read access to a subset of
        Oracle Communications Session Report Manager accessible data.
         Affects:
         o Oracle Communications Session Report Manager 8.2.1.0-8.2.2.1
        
        CVE-2019-1559
          5.9 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
        The supported version that is affected is 10.4.0.2. Difficult to
        exploit vulnerability allows unauthenticated attacker with network
        access via HTTPS to compromise Oracle Communications Performance
        Intelligence Center (PIC) Software. Successful attacks of this
        vulnerability can result in unauthorized access to critical data or
        complete access to all Oracle Communications Performance Intelligence
        Center (PIC) Software accessible data.
         Affects:
         o Oracle Communications Performance Intelligence Center (PIC)
           Software 10.4.0.2


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 - January 2021
            https://www.oracle.com/security-alerts/cpujan2021.html

        [2] Text Form of Oracle Critical Patch Update - January 2021 Risk
            Matrices
            https://www.oracle.com/security-alerts/cpujan2021verbose.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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