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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2022.0091 Oracle Virtualization Critical Patch Update 20 April 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Oracle Secure Global Desktop Oracle VM VirtualBox Operating System: UNIX variants (UNIX, Linux, OSX) Windows Virtualisation Resolution: Patch/Upgrade CVE Names: CVE-2022-21491 CVE-2022-21488 CVE-2022-21487 CVE-2022-21471 CVE-2022-21465 CVE-2021-40438 Comment: CVSS (Max): 9.0 CVE-2021-40438 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H) CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H OVERVIEW Multiple vulnerabilities have been identified in : o Oracle Secure Global Desktop, version 5.6 o Oracle VM VirtualBox, versions prior to 6.1.34 [1] IMPACT The vendor has provided the following information regarding the vulnerabilities: "This Critical Patch Update contains 6 new security patches for Oracle Virtualization. 1 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without requiring user credentials." [1] CVE-2021-40438 9.0 AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H The supported version that is affected is 5.6. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Secure Global Desktop. While the vulnerability is in Oracle Secure Global Desktop, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Secure Global Desktop. Affects: o Oracle Secure Global Desktop 5.6 CVE-2022-21491 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H The supported version that is affected is Prior to 6.1.34. Easily exploitable vulnerability allows low 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 takeover of Oracle VM VirtualBox. Note : This vulnerability applies to Windows systems only. Affects: o Oracle VM VirtualBox Prior to 6.1.34 CVE-2022-21465 6.7 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H The supported version that is affected is Prior to 6.1.34. 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 (scope change). Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox as well as unauthorized update, insert or delete access to some of Oracle VM VirtualBox accessible data. Affects: o Oracle VM VirtualBox Prior to 6.1.34 CVE-2022-21471 6.5 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H The supported version that is affected is Prior to 6.1.34. 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 (scope change). 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 6.1.34 CVE-2022-21487 3.8 AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N The supported version that is affected is Prior to 6.1.34. 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 (scope change). 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 6.1.34 CVE-2022-21488 3.8 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N The supported version that is affected is Prior to 6.1.34. 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 (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle VM VirtualBox accessible data. Affects: o Oracle VM VirtualBox Prior to 6.1.34 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 - April 2022 https://www.oracle.com/security-alerts/cpuapr2022.html [2] Text Form of Oracle Critical Patch Update - April 2022 Risk Matrices https://www.oracle.com/security-alerts/cpuapr2022verbose.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. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYl9omONLKJtyKPYoAQgpsg//Tw/QHWFlHq0bbs+omJ+cDOJM4NbP2wdl 0gROzHSjR+biWfWuXioLtyuIpa64eTQeQYr3zt7r+dEnrN0HLavPuJsIYv/lCQ8e P7LVSa7++S4FJHzUCi2oxYueDbfe7dsvV0nHS/YQHDxqg4SwcvbYqU6vCdqrvHx2 kuOJ9MyPRVlezQhke1WlOMu2YpC4d8B7xJmyewm1jufgw+9LEf5sKvNzpuk8GQ9b 3rHcKMY1A20dccIVnxT6/pMFhExQd2MmbR6uK6S4UdUqGz68kLnuC4s3F13cgRR/ xsSriEu3OuYx6AAcvKE0EQWJ4MeXY1Tf13Qg9e2Uqfb6IDwOCAyVY7B0ek0mLicl pJU3yYDtYwKu9KXEaNCKRvE7GzAkgnRwv78AX8Kxxe+F0rJmTrDzhEKtLEhtveFG bks10LCFecLyMBcZHTQ96qPv87kSQXtW5GP4UznhXxXV9FWQj2f5oWBfZj5JnKT+ bBBl6zFJQDXotIfGopyQZesDWAM47xVT/mFAZPDySQeYwnHcs8O2LDlMqYCeCa7U t5jEeJWbytomndNnu/+zqE7pfON35o64fCaUVvWey6qvTJeciztPp/CzB5oOSdoc 85Np0ZIcN4wakMOFLKuvSvrDaUtD85GpcNd4vAVv5GR6wSrXdIzZwTcT8fUpWjBG MMh3wKW8bSY= =D1wv -----END PGP SIGNATURE-----