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AUSCERT Security Bulletin
ASB-2022.0225
Oracle Systems Critical Patch Update
19 October 2022
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AusCERT Security Bulletin Summary
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Product: Oracle Solaris
Oracle Solaris Cluster
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2022-39417 CVE-2022-39401 CVE-2022-29577
CVE-2022-23437 CVE-2022-21610 CVE-2021-44832
CVE-2021-40690 CVE-2020-36518
Comment: CVSS (Max): 6.1* CVE-2022-29577 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
* Not all CVSS available when published
OVERVIEW
Multiple vulnerabilities have been identified in :
o Oracle Solaris, version 11
o Oracle Solaris Cluster, version 4
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 8 new security patches for
Oracle Systems. 4 of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
"CVE-2021-40690
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The supported version that is affected is 4. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Oracle Solaris Cluster. Successful attacks of this
vulnerability can result in unauthorized access to critical data or
complete access to all Oracle Solaris Cluster accessible data.
Affects:
o Oracle Solaris Cluster 4
CVE-2020-36518
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 4. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Oracle Solaris Cluster. Successful attacks of this
vulnerability can result in unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of Oracle Solaris Cluster.
Affects:
o Oracle Solaris Cluster 4
CVE-2021-44832
6.6 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
The supported version that is affected is 4. Difficult to exploit
vulnerability allows high privileged attacker with network access via
HTTP to compromise Oracle Solaris Cluster. Successful attacks of this
vulnerability can result in takeover of Oracle Solaris Cluster.
Affects:
o Oracle Solaris Cluster 4
CVE-2022-23437
6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
The supported version that is affected is 4. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Oracle Solaris Cluster. 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 Oracle
Solaris Cluster.
Affects:
o Oracle Solaris Cluster 4
CVE-2022-29577
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 4. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTP to compromise Oracle Solaris Cluster. Successful attacks require
human interaction from a person other than the attacker and while the
vulnerability is in Oracle Solaris Cluster, 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 Oracle Solaris Cluster accessible data as well as
unauthorized read access to a subset of Oracle Solaris Cluster
accessible data.
Affects:
o Oracle Solaris Cluster 4
CVE-2022-39417
5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The supported version that is affected is 11. Easily exploitable
vulnerability allows low privileged attacker with logon to the
infrastructure where Oracle Solaris executes to compromise Oracle
Solaris. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of Oracle Solaris.
Affects:
o Oracle Solaris 11
CVE-2022-39401
5.5 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The supported version that is affected is 11. Easily exploitable
vulnerability allows low privileged attacker with logon to the
infrastructure where Oracle Solaris executes to compromise Oracle
Solaris. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of Oracle Solaris.
Affects:
o Oracle Solaris 11
CVE-2022-21610
3.3 AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L
The supported version that is affected is 11. Difficult to exploit
vulnerability allows low privileged attacker with logon to the
infrastructure where Oracle Solaris executes to compromise Oracle
Solaris. Successful attacks require human interaction from a person
other than the attacker. Successful attacks of this vulnerability can
result in unauthorized read access to a subset of Oracle Solaris
accessible data and unauthorized ability to cause a partial denial of
service (partial DOS) of Oracle Solaris.
Affects:
o Oracle Solaris 11" [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.
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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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