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                         AUSCERT Security Bulletin

                               ASB-2022.0220
                     Oracle PeopleSoft Critical Patch
                              19 October 2022

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

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

Product:          PeopleSoft Enterprise Common Components
                  PeopleSoft Enterprise PeopleTools
Operating System: UNIX variants (UNIX, Linux, OSX)
                  Windows
Resolution:       Patch/Upgrade
CVE Names:        CVE-2022-39407 CVE-2022-39406 CVE-2022-25647
                  CVE-2022-24823 CVE-2022-21639 CVE-2022-21602
                  CVE-2022-2097 CVE-2021-22144 

Comment: CVSS (Max):  8.1* CVE-2022-39406 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
         CVSS Source: Oracle, [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:N
         * Not all CVSS available when published

OVERVIEW

        Multiple vulnerabilities have been identified in :
         o PeopleSoft Enterprise Common Components, version 9.2
         o PeopleSoft Enterprise PeopleTools, versions 8.58, 8.59, 8.60
        [1]


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities:
        
        "This Critical Patch Update contains 8 new security patches for
        Oracle PeopleSoft. 4 of these vulnerabilities may be remotely
        exploitable without authentication, i.e., may be exploited over a
        network without requiring user credentials." [1]
        
        "CVE-2022-39406
         8.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
        The supported version that is affected is 9.2. Easily exploitable
        vulnerability allows low privileged attacker with network access via
        HTTP to compromise PeopleSoft Enterprise Common Components.
        Successful attacks of this vulnerability can result in unauthorized
        creation, deletion or modification access to critical data or all
        PeopleSoft Enterprise Common Components accessible data as well as
        unauthorized access to critical data or complete access to all
        PeopleSoft Enterprise Common Components accessible data.
         Affects:
         o PeopleSoft Enterprise Common Components 9.2
        
        CVE-2022-25647
         7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise PeopleSoft Enterprise
        PeopleTools. Successful attacks of this vulnerability can result in
        unauthorized ability to cause a hang or frequently repeatable crash
        (complete DOS) of PeopleSoft Enterprise PeopleTools.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60
        
        CVE-2021-22144
         6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows low privileged attacker with network
        access via HTTP to compromise PeopleSoft Enterprise PeopleTools.
        Successful attacks of this vulnerability can result in unauthorized
        ability to cause a hang or frequently repeatable crash (complete DOS)
        of PeopleSoft Enterprise PeopleTools.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60
        
        CVE-2022-21639
         6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
        Supported versions that are affected are 8.59 and 8.60. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise PeopleSoft Enterprise
        PeopleTools. Successful attacks require human interaction from a
        person other than the attacker and while the vulnerability is in
        PeopleSoft Enterprise PeopleTools, 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 PeopleSoft Enterprise PeopleTools accessible data
        as well as unauthorized read access to a subset of PeopleSoft
        Enterprise PeopleTools accessible data.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.59, 8.60
        
        CVE-2022-24823
         5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where PeopleSoft Enterprise PeopleTools
        executes to compromise PeopleSoft Enterprise PeopleTools. Successful
        attacks of this vulnerability can result in unauthorized access to
        critical data or complete access to all PeopleSoft Enterprise
        PeopleTools accessible data.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60
        
        CVE-2022-39407
         5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows low privileged attacker with logon
        to the infrastructure where PeopleSoft Enterprise PeopleTools
        executes to compromise PeopleSoft Enterprise PeopleTools. Successful
        attacks of this vulnerability can result in unauthorized access to
        critical data or complete access to all PeopleSoft Enterprise
        PeopleTools accessible data.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60
        
        CVE-2022-21602
         5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via HTTP to compromise PeopleSoft Enterprise
        PeopleTools. Successful attacks of this vulnerability can result in
        unauthorized read access to a subset of PeopleSoft Enterprise
        PeopleTools accessible data.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60
        
        CVE-2022-2097
         5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
        Supported versions that are affected are 8.58, 8.59 and 8.60. Easily
        exploitable vulnerability allows unauthenticated attacker with
        network access via TLS to compromise PeopleSoft Enterprise
        PeopleTools. Successful attacks of this vulnerability can result in
        unauthorized read access to a subset of PeopleSoft Enterprise
        PeopleTools accessible data.
         Affects:
         o PeopleSoft Enterprise PeopleTools 8.58, 8.59, 8.60" [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 - October 2022
            https://www.oracle.com/security-alerts/cpuoct2022.html

        [2] Text Form of Oracle Critical Patch Update - October 2022 Risk
            Matrices
            https://www.oracle.com/security-alerts/cpuoct2022verbose.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
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