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AUSCERT Security Bulletin
ASB-2018.0158
Security Advisory: Oracle Database
18 July 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Oracle Database Server
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-7489 CVE-2018-3004 CVE-2018-2939
CVE-2017-15095
Member content until: Friday, August 17 2018
Reference: ASB-2018.0082
ESB-2018.1876
ESB-2018.1487
ESB-2017.2879
OVERVIEW
Multiple vulnerabilities have been identified in
Oracle Database Server, versions 11.2.0.4, 12.1.0.2,
12.2.0.1, 18.1, 18.2. [1]
IMPACT
The vendor has provided the following information regarding
the vulnerabilities:
"This Critical Patch Update contains 1 new security fix for
Oracle Global Lifecycle Management. This vulnerability is
remotely exploitable without authentication, i.e., may be
exploited over a network without requiring user
credentials." [1]
"CVE-2017-15095
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Easily exploitable vulnerability allows unauthenticated
attacker with network access via multiple protocols to
compromise Oracle Spatial (jackson-databind). Successful
attacks of this vulnerability can result in takeover of
Oracle Spatial (jackson-databind).
CVE-2018-2939
8.4
AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Easily exploitable vulnerability allows low privileged
attacker having Local Logon privilege with logon to the
infrastructure where Core RDBMS executes to compromise Core
RDBMS. While the vulnerability is in Core RDBMS, 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 Core RDBMS accessible data and unauthorized ability
to cause a hang or frequently repeatable crash (complete
DOS) of Core RDBMS.
CVE-2018-3004
5.3
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Difficult to exploit vulnerability allows low privileged
attacker having Create Session, Create Procedure privilege
with network access via multiple protocols to compromise
Java VM. Successful attacks of this vulnerability can
result in unauthorized access to critical data or complete
access to all Java VM accessible data.
CVE-2018-7489
9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The supported version that is affected is All. Easily
exploitable vulnerability allows unauthenticated attacker
with network access via multiple protocols to compromise
Oracle Global Lifecycle Management OPatchAuto. Successful
attacks of this vulnerability can result in takeover of
Oracle Global Lifecycle Management OPatchAuto." [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 - July 2018
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
[2] Text Form of Oracle Critical Patch Update - July 2018 Risk Matrices
http://www.oracle.com/technetwork/security-advisory/cpujul2018verbose-4258253.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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