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AUSCERT Security Bulletin
ASB-2019.0208
Oracle Support Tools CPU
17 July 2019
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AusCERT Security Bulletin Summary
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Product: Oracle Diagnostic Assistant
Oracle Clusterware
Oracle Services Tools Bundle
Oracle System Utilities
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11358 CVE-2019-3822 CVE-2019-2860
CVE-2019-1559 CVE-2018-1000873 CVE-2018-12022
CVE-2015-9251
Member content until: Friday, August 16 2019
OVERVIEW
Multiple vulnerabilities have been identified in :
o Diagnostic Assistant, versions prior to 2.12.36
o Oracle Clusterware, version 12.1.0.2.0
o Services Tools Bundle, version 19.2
o System Utilities, version 19.1
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 7 new security fixes for Oracle
Support Tools. All of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
CVE-2019-3822
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 the affected
system. Successful attacks of this vulnerability can result in
takeover of the affected system.
Affects:
o Services Tools Bundle 19.2
CVE-2018-12022
7.5 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via multiple protocols to compromise the affected
system. Successful attacks require human interaction from a person
other than the attacker. Successful attacks of this vulnerability can
result in takeover of the affected system.
Affects:
o Oracle Clusterware 12.1.0.2.0
CVE-2018-1000873
6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Easily exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise the affected
system. Successful attacks require human interaction from a person
other than the attacker. Successful attacks of this vulnerability can
result in unauthorized ability to cause a hang or frequently
repeatable crash (complete DOS) of the affected system.
Affects:
o Oracle Clusterware 12.1.0.2.0
CVE-2015-9251
6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Easily exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise the affected
system. Successful attacks require human interaction from a person
other than the attacker and while the vulnerability is in the
affected system, attacks may significantly impact additional
products. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of the affected
system's accessible data as well as unauthorized read access to a
subset of the affected system's accessible data.
Affects:
o Diagnostic Assistant Prior to 2.12.36
CVE-2019-11358
6.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Easily exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise the affected
system. Successful attacks require human interaction from a person
other than the attacker and while the vulnerability is in the
affected system, attacks may significantly impact additional
products. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of the affected
system's accessible data as well as unauthorized read access to a
subset of the affected system's accessible data.
Affects:
o System Utilities 19.1
CVE-2019-1559
5.9 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via HTTPS to compromise the affected system.
Successful attacks of this vulnerability can result in unauthorized
access to critical data or complete access to all the affected
system's accessible data.
Affects:
o Services Tools Bundle 19.2
CVE-2019-2860
5.6 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via multiple protocols to compromise the affected
system. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of the affected
system's accessible data as well as unauthorized read access to a
subset of the affected system's accessible data and unauthorized
ability to cause a partial denial of service (partial DOS) of the
affected system.
Affects:
o Oracle Clusterware 12.1.0.2.0" [1]
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 2019
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
[2] Text Form of Oracle Critical Patch Update - July 2019 Risk Matrices
https://www.oracle.com/technetwork/security-advisory/cpujul2019verbose-5072838.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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