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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2018.0085 Security Advisory: Oracle Java SE 18 April 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Oracle Java SE Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Privileged Data -- Remote/Unauthenticated Modify Arbitrary Files -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-2826 CVE-2018-2825 CVE-2018-2815 CVE-2018-2814 CVE-2018-2811 CVE-2018-2800 CVE-2018-2799 CVE-2018-2798 CVE-2018-2797 CVE-2018-2796 CVE-2018-2795 CVE-2018-2794 CVE-2018-2790 CVE-2018-2783 Member content until: Friday, May 18 2018 OVERVIEW Multiple vulnerabilities have been identified in: Oracle Java SE, versions 6u181, 7u161, 7u171, 8u152, 8u162, 10 Oracle Java SE Embedded, versions 8u152, 8u161 Oracle JRockit, version R28.3.17 [1] IMPACT The vendor has provided the following information regarding the vulnerabilities: "This Critical Patch Update contains 14 new security fixes for Oracle Java SE. 12 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without requiring user credentials." [1] "CVE-2018-2825 8.3 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H The supported version that is affected is Java SE: 10. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVE-2018-2826 8.3 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H The supported version that is affected is Java SE: 10. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVE-2018-2814 8.3 AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, Java SE Embedded, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, Java SE Embedded. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVE-2018-2811 7.7 AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Supported versions that are affected are Java SE: 8u162 and 10. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Java SE executes to compromise Java SE. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE. Note: Applies to installation process on client deployment of Java. CVE-2018-2794 7.7 AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H Supported versions that are affected are Java SE: 6u181, 7u171, 8u162, 10 and JRockit: R28.3.17. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where Java SE, JRockit executes to compromise Java SE, JRockit. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Java SE, JRockit, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Java SE, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2783 7.4 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Supported versions that are affected are Java SE: 6u181, 7u161 and 8u152; Java SE Embedded: 8u152; JRockit: R28.3.17. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Java SE, Java SE Embedded, JRockit accessible data as well as unauthorized access to critical data or complete access to all Java SE, Java SE Embedded, JRockit accessible data. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2798 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2796 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2799 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2797 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2795 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2815 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161; JRockit: R28.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded, JRockit. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVE-2018-2800 4.2 AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N Supported versions that are affected are Java SE: 6u181, 7u171 and 8u162; JRockit: R28.3.17. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, JRockit. 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 Java SE, JRockit accessible data as well as unauthorized read access to a subset of Java SE, JRockit accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVE-2018-2790 3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N Supported versions that are affected are Java SE: 6u181, 7u171, 8u162 and 10; Java SE Embedded: 8u161. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. 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 Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator)." [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 - April 2018 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html [2] Text Form of Oracle Critical Patch Update - April 2018 Risk Matrices http://www.oracle.com/technetwork/security-advisory/cpuapr2018verbose-3678108.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 iQIVAwUBWtfMvYx+lLeg9Ub1AQgydA/+KLJWSyRFEvLmocA3DwjqeyyI9g/Egkcr QuZSP14nEB+VXaqccffRF+n6Y+ML7K5s/CoIYBOVBiMCjeupIrOa6qZarlXGw1h+ pM7icg11TwmHvxqbvGcV94uoyC5uaRfGFLLvjkfKidNuugWEwrWVKBuchaMxcCFr EljcB484V4RMArcFR692ancQg2J0pJk8KgOi7N7yGuctsHY31ZSqGbvuG8QJgUEj HPruHGkogcw1Hsbzpna6KUG3bnMJou26UqKt99ElzjROfRcIbg13c376CMgn0PAh BtbnpM8B13LZozu/xfvdBFJ2wBpPVeLqiWZDUj38KWF4k32EHShrI2Wcn8nkB6U+ GMSSyqQoFpZAysQ3EivG27ebo/uSvMwwq0/Z1elAZQLfWcBfnWD3C5pytV/K92zn MEQRUektGUWlJGufB5FOr2jNXbUMnNrcQkViVL7fzaoSng8gO3VvKu8/JDb2aodM eVbnjrb2YbsMJ2FX+IqwqIwH0YR598F5wIO+XgVhBR1fhZmk9aKJKSfdy3wevDvb OnNeO5iVIO/VwM7LghzAsElqoErUdjcw3SeTebAEpXY80f2MfsBdqhCMwZxl8dCa 0MUKSA2wGJrNjRu/uGCLGfcV1QAc6zvBd69jWCRLqeun1vgvB4dDnaq0V7CkhNNb SRuJr9sEDsE= =Jvqb -----END PGP SIGNATURE-----