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AUSCERT Security Bulletin
ASB-2018.0023
A vulnerability has been identified in Oracle Java Micro Edition
17 January 2018
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AusCERT Security Bulletin Summary
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Product: Oracle Java Micro Edition
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-2569
Member content until: Friday, February 16 2018
OVERVIEW
Multiple vulnerabilities have been identified in
Java ME SDK, version 8.3
[1]
IMPACT
The vendor has provided the following information regarding
the vulnerability:
"This Critical Patch Update contains 1 new security fix for
Oracle Java Micro Edition. This vulnerability is not
remotely exploitable without authentication, i.e., may not
be exploited over a network without requiring user
credentials." [1]
"CVE-2018-2569
7.8
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The supported version that is affected is 8.3. Easily
exploitable vulnerability allows unauthenticated attacker
with logon to the infrastructure where Java ME SDK executes
to compromise Java ME SDK. Successful attacks require human
interaction from a person other than the attacker.
Successful attacks of this vulnerability can result in
takeover of Java ME SDK. Note: This applies to the Windows
platform only." [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 - January 2018
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
[2] Text Form of Oracle Critical Patch Update - January 2018 Risk
Matrices
http://www.oracle.com/technetwork/security-advisory/cpujan2018verbose-3236630.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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