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AUSCERT Security Bulletin
ASB-2021.0150
Oracle Essbase Critical Patch Update
21 July 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Essbase
Essbase Analytic Provider Services
Hyperion Essbase Administration Services
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-2435 CVE-2021-2433 CVE-2021-2350
CVE-2021-2349 CVE-2021-2244 CVE-2020-8285
CVE-2020-7760 CVE-2019-12402 CVE-2019-0190
Reference: ASB-2021.0093
ASB-2021.0018
ASB-2019.0203
OVERVIEW
Multiple vulnerabilities have been identified in :
o Essbase, version 21.2
o Essbase Analytic Provider Services, versions 11.1.2.4, 21.2
o Hyperion Essbase Administration Services, versions 11.1.2.4,
21.2
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 9 new security patches for
Oracle Essbase. 8 of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
CVE-2021-2349
8.6 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Supported versions that are affected are 11.1.2.4 and 21.2. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Hyperion Essbase Administration
Services. While the vulnerability is in Hyperion Essbase
Administration Services, attacks may significantly impact additional
products. Successful attacks of this vulnerability can result in
unauthorized access to critical data or complete access to all
Hyperion Essbase Administration Services accessible data.
Affects:
o Hyperion Essbase Administration Services 11.1.2.4, 21.2
CVE-2021-2435
8.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
The supported version that is affected is 11.1.2.4. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Essbase Analytic Provider
Services. Successful attacks require human interaction from a person
other than the attacker. Successful attacks of this vulnerability can
result in unauthorized creation, deletion or modification access to
critical data or all Essbase Analytic Provider Services accessible
data as well as unauthorized access to critical data or complete
access to all Essbase Analytic Provider Services accessible data.
Affects:
o Essbase Analytic Provider Services 11.1.2.4
CVE-2019-0190
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 21.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTPS to compromise Essbase. Successful attacks of this vulnerability
can result in unauthorized ability to cause a hang or frequently
repeatable crash (complete DOS) of Essbase.
Affects:
o Essbase 21.2
CVE-2020-8285
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 21.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
multiple protocols to compromise Essbase. Successful attacks of this
vulnerability can result in unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of Essbase.
Affects:
o Essbase 21.2
CVE-2021-2433
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 11.1.2.4 and 21.2. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Essbase Analytic Provider
Services. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of Essbase Analytic Provider Services.
Affects:
o Essbase Analytic Provider Services 11.1.2.4, 21.2
CVE-2021-2350
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Supported versions that are affected are 11.1.2.4 and 21.2. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTP to compromise Hyperion Essbase Administration
Services. Successful attacks of this vulnerability can result in
unauthorized access to critical data or complete access to all
Hyperion Essbase Administration Services accessible data.
Affects:
o Hyperion Essbase Administration Services 11.1.2.4, 21.2
CVE-2020-7760
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
The supported version that is affected is 21.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Essbase. Successful attacks of this vulnerability
can result in unauthorized ability to cause a partial denial of
service (partial DOS) of Essbase.
Affects:
o Essbase 21.2
CVE-2019-12402
4.1 AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
The supported version that is affected is 21.2. Easily exploitable
vulnerability allows low privileged attacker with access to the
physical communication segment attached to the hardware where the
Essbase executes to compromise Essbase. Successful attacks require
human interaction from a person other than the attacker. Successful
attacks of this vulnerability can result in unauthorized update,
insert or delete access to some of Essbase accessible data and
unauthorized ability to cause a partial denial of service (partial
DOS) of Essbase.
Affects:
o Essbase 21.2
CVE-2021-2244
10.0 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
The supported version that is affected is 21.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Essbase Analytic Provider Services. While the
vulnerability is in Essbase Analytic Provider Services, attacks may
significantly impact additional products. Successful attacks of this
vulnerability can result in takeover of Essbase Analytic Provider
Services.
Affects:
o Essbase Analytic Provider Services 21.2
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 - July 2021
https://www.oracle.com/security-alerts/cpujul2021.html
[2] Text Form of Oracle Critical Patch Update - July 2021 Risk Matrices
https://www.oracle.com/security-alerts/cpujul2021verbose.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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