Protect yourself against future threats.
-----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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=Jvqb
-----END PGP SIGNATURE-----