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AUSCERT Security Bulletin
ASB-2021.0220
Multiple vulnerabilities identified in Oracle Construction
and Engineering Suite
20 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Instantis EnterpriseTrack
Primavera Gateway
Primavera Unifier
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
Read-only Data Access -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-36374 CVE-2021-36090 CVE-2021-33037
CVE-2021-29425 CVE-2021-28657 CVE-2021-26691
CVE-2021-23337 CVE-2021-2351
Reference: ASB-2021.0208
ASB-2021.0198
ESB-2021.3397
OVERVIEW
Multiple vulnerabilities have been identified in :
o Instantis EnterpriseTrack, versions 17.1, 17.2, 17.3
o Primavera Gateway, versions 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11, 20.12.0-20.12.7
o Primavera Unifier, versions 17.7-17.12, 18.8, 19.12, 20.12
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 12 new security patches for
Oracle Construction and Engineering. 7 of these vulnerabilities may
be remotely exploitable without authentication, i.e., may be
exploited over a network without requiring user credentials." [1]
CVE-2021-26691
9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 17.1, 17.2 and 17.3. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Instantis EnterpriseTrack.
Successful attacks of this vulnerability can result in takeover of
Instantis EnterpriseTrack.
Affects:
o Instantis EnterpriseTrack 17.1, 17.2, 17.3
CVE-2021-2351
8.3 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Supported versions that are affected are 17.1, 17.2 and 17.3.
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via Oracle Net to compromise Instantis
EnterpriseTrack. Successful attacks require human interaction from a
person other than the attacker and while the vulnerability is in
Instantis EnterpriseTrack, attacks may significantly impact
additional products. Successful attacks of this vulnerability can
result in takeover of Instantis EnterpriseTrack.
Affects:
o Instantis EnterpriseTrack 17.1, 17.2, 17.3
o Primavera Gateway 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11, 20.12.0-20.12.7
CVE-2021-36090
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 17.12.0-17.12.11,
18.8.0-18.8.12, 19.12.0-19.12.11 and 20.12.0-20.12.7. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Primavera Gateway. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of
Primavera Gateway.
Affects:
o Primavera Gateway 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11, 20.12.0-20.12.7
o Primavera Unifier 17.7-17.12, 18.8, 19.12, 20.12
CVE-2021-23337
7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 17.12.0-17.12.11,
18.8.0-18.8.12, 19.12.0-19.12.11 and 20.12.0-20.12.7. Easily
exploitable vulnerability allows high privileged attacker with
network access via HTTP to compromise Primavera Gateway. Successful
attacks of this vulnerability can result in takeover of Primavera
Gateway.
Affects:
o Primavera Gateway 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11, 20.12.0-20.12.7
o Primavera Unifier 17.7-17.12, 18.8, 19.12, 20.12
CVE-2021-36374
5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Supported versions that are affected are 17.12.0-17.12.11,
18.8.0-18.8.12, 19.12.0-19.12.11 and 20.12.0-20.12.7. Easily
exploitable vulnerability allows unauthenticated attacker with logon
to the infrastructure where Primavera Gateway executes to compromise
Primavera Gateway. 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 Primavera Gateway.
Affects:
o Primavera Gateway 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11, 20.12.0-20.12.7
o Primavera Unifier 17.7-17.12, 18.8, 19.12, 20.12
CVE-2021-28657
5.5 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Supported versions that are affected are 17.7-17.12, 18.8, 19.12 and
20.12. Easily exploitable vulnerability allows unauthenticated
attacker with logon to the infrastructure where Primavera Unifier
executes to compromise Primavera Unifier. 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
Primavera Unifier.
Affects:
o Primavera Unifier 17.7-17.12, 18.8, 19.12, 20.12
CVE-2021-33037
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Supported versions that are affected are 17.1, 17.2 and 17.3. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Instantis EnterpriseTrack.
Successful attacks of this vulnerability can result in unauthorized
update, insert or delete access to some of Instantis EnterpriseTrack
accessible data.
Affects:
o Instantis EnterpriseTrack 17.1, 17.2, 17.3
CVE-2021-29425
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Supported versions that are affected are 17.12.0-17.12.11,
18.8.0-18.8.12 and 19.12.0-19.12.11. Easily exploitable vulnerability
allows unauthenticated attacker with network access via HTTP to
compromise Primavera Gateway. Successful attacks of this
vulnerability can result in unauthorized read access to a subset of
Primavera Gateway accessible data.
Affects:
o Primavera Gateway 17.12.0-17.12.11, 18.8.0-18.8.12,
19.12.0-19.12.11
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
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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