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AUSCERT Security Bulletin
ASB-2021.0028
Oracle PeopleSoft Critical Patch Update
21 January 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: PeopleSoft Enterprise FIN Payables
PeopleSoft Enterprise HCM Human Resources
PeopleSoft Enterprise PeopleTools
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Remote with User Interaction
Read-only Data Access -- Remote/Unauthenticated
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-2071 CVE-2021-2063 CVE-2021-2044
CVE-2021-2043 CVE-2020-11022 CVE-2020-9281
CVE-2020-1968 CVE-2019-0227
Member content until: Saturday, February 20 2021
Reference: ASB-2021.0023
ASB-2021.0020
ASB-2021.0017
ASB-2020.0226
ASB-2020.0215
ASB-2020.0195
OVERVIEW
Multiple vulnerabilities have been identified in :
o PeopleSoft Enterprise FIN Payables, version 9.2
o PeopleSoft Enterprise HCM Human Resources, version 9.2
o PeopleSoft Enterprise PeopleTools, versions 8.56, 8.57, 8.58
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 8 new security patches for
Oracle PeopleSoft. 6 of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
CVE-2021-2063
8.4 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 8.56, 8.57 and 8.58. Easily
exploitable vulnerability allows unauthenticated attacker with logon
to the infrastructure where PeopleSoft Enterprise PeopleTools
executes to compromise PeopleSoft Enterprise PeopleTools. Successful
attacks of this vulnerability can result in takeover of PeopleSoft
Enterprise PeopleTools.
Affects:
o PeopleSoft Enterprise PeopleTools 8.56, 8.57, 8.58
CVE-2021-2071
8.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 8.56, 8.57 and 8.58.
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via HTTP to compromise PeopleSoft Enterprise
PeopleTools. Successful attacks of this vulnerability can result in
takeover of PeopleSoft Enterprise PeopleTools.
Affects:
o PeopleSoft Enterprise PeopleTools 8.56, 8.57, 8.58
CVE-2019-0227
7.5 AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The supported version that is affected is 9.2. Difficult to exploit
vulnerability allows unauthenticated attacker with access to the
physical communication segment attached to the hardware where the
PeopleSoft Enterprise HCM Human Resources executes to compromise
PeopleSoft Enterprise HCM Human Resources. Successful attacks of this
vulnerability can result in takeover of PeopleSoft Enterprise HCM
Human Resources.
Affects:
o PeopleSoft Enterprise HCM Human Resources 9.2
CVE-2021-2044
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 FIN Payables. Successful
attacks of this vulnerability can result in unauthorized access to
critical data or complete access to all PeopleSoft Enterprise FIN
Payables accessible data.
Affects:
o PeopleSoft Enterprise FIN Payables 9.2
CVE-2020-11022
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 9.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise PeopleSoft Enterprise HCM Human Resources.
Successful attacks require human interaction from a person other than
the attacker and while the vulnerability is in PeopleSoft Enterprise
HCM Human Resources, attacks may significantly impact additional
products. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of PeopleSoft
Enterprise HCM Human Resources accessible data as well as
unauthorized read access to a subset of PeopleSoft Enterprise HCM
Human Resources accessible data.
Affects:
o PeopleSoft Enterprise HCM Human Resources 9.2
CVE-2021-2043
6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Supported versions that are affected are 8.56, 8.57 and 8.58. 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. 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 8.56, 8.57, 8.58
CVE-2020-9281
6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Supported versions that are affected are 8.56, 8.57 and 8.58. 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. 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 8.56, 8.57, 8.58
CVE-2020-1968
3.7 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Supported versions that are affected are 8.56, 8.57 and 8.58.
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via HTTPS 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 8.56, 8.57, 8.58
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.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
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