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AUSCERT Security Bulletin
ASB-2021.0034
Oracle Virtualization Critical Patch Update
21 January 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Oracle VM VirtualBox
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Modify Arbitrary Files -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-2131 CVE-2021-2130 CVE-2021-2129
CVE-2021-2128 CVE-2021-2127 CVE-2021-2126
CVE-2021-2125 CVE-2021-2124 CVE-2021-2123
CVE-2021-2121 CVE-2021-2120 CVE-2021-2119
CVE-2021-2112 CVE-2021-2111 CVE-2021-2086
CVE-2021-2074 CVE-2021-2073
Member content until: Saturday, February 20 2021
Reference: ASB-2021.0002
ESB-2021.0193
ESB-2021.0074
OVERVIEW
Multiple vulnerabilities have been identified in :
o Oracle VM VirtualBox, versions prior to 6.1.18
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 17 new security patches for
Oracle Virtualization. None of these vulnerabilities may be remotely
exploitable without authentication, i.e., none may be exploited over
a network without requiring user credentials." [1]
CVE-2021-2074
8.2 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in takeover of
Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2129
7.9 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
creation, deletion or modification access to critical data or all
Oracle VM VirtualBox accessible data as well as unauthorized access
to critical data or complete access to all Oracle VM VirtualBox
accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2128
6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows low privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
access to critical data or complete access to all Oracle VM
VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2086
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2111
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2112
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2121
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2124
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2119
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
access to critical data or complete access to all Oracle VM
VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2120
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
access to critical data or complete access to all Oracle VM
VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2126
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
creation, deletion or modification access to critical data or all
Oracle VM VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2131
6.0 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
creation, deletion or modification access to critical data or all
Oracle VM VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2125
4.6 AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
update, insert or delete access to some of Oracle VM VirtualBox
accessible data as well as unauthorized read access to a subset of
Oracle VM VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2073
4.4 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. Successful attacks of this
vulnerability can result in unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2127
4.4 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. Successful attacks of this
vulnerability can result in unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2130
4.4 AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. Successful attacks of this
vulnerability can result in unauthorized ability to cause a hang or
frequently repeatable crash (complete DOS) of Oracle VM VirtualBox.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
CVE-2021-2123
3.2 AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
The supported version that is affected is Prior to 6.1.18. Easily
exploitable vulnerability allows high privileged attacker with logon
to the infrastructure where Oracle VM VirtualBox executes to
compromise Oracle VM VirtualBox. While the vulnerability is in Oracle
VM VirtualBox, attacks may significantly impact additional products.
Successful attacks of this vulnerability can result in unauthorized
read access to a subset of Oracle VM VirtualBox accessible data.
Affects:
o Oracle VM VirtualBox Prior to 6.1.18
MITIGATION
"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.
===========================================================================
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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