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AUSCERT External Security Bulletin Redistribution
ESB-2018.3895
Security Bulletins: WebSphere Application Server
17 December 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server
Publisher: IBM
Operating System: AIX
HP-UX
IBM i
Linux variants
Solaris
Windows
z/OS
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Existing Account
Cross-site Request Forgery -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1926 CVE-2018-1904 CVE-2018-1901
Reference: ESB-2018.3875
ESB-2018.3872
ESB-2018.3853
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10738735
http://www.ibm.com/support/docview.wss?uid=ibm10738727
http://www.ibm.com/support/docview.wss?uid=ibm10742301
Comment: This bulletin contains three (3) IBM security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: Potential Remote code execution vulnerability in WebSphere
Application Server (CVE-2018-1904)
Security Bulletin
Document information
More support for: WebSphere Application Server
Software version: 7.0, 8.0, 8.5, 9.0
Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Software edition: Advanced, Base, Developer, Enterprise, Express, Network
Deployment, Single Server
Reference #: 0738735
Modified date: 15 December 2018
Summary
There is a potential remote code execution vulnerability in WebSphere
Application Server (CVE-2018-1904)
Vulnerability Details
CVEID: CVE-2018-1904
DESCRIPTION: IBM WebSphere Application Server could allow remote attackers to
execute arbitrary Java code through an administrative client class with a
serialized object from untrusted sources.
CVSS Base Score: 8.1
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/152533 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM WebSphere
Application Server:
o Version 9.0
o Version 8.5
o Version 8.0
o Version 7.0
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing the APAR for each named product as soon as practical.
For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V9.0.0.0 through 9.0.0.9:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH04060
- --OR--
o Apply Fix Pack 9.0.0.10 or later (targeted availability 4Q 2018).
For V8.5.0.0 through 8.5.5.14:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH04060
- --OR--
o Apply Fix Pack 8.5.5.15 or later (targeted availability 1Q 2019).
For V8.0.0.0 through 8.0.0.15:
o Upgrade to 8.0.0.15 and then apply Interim Fix PH04060
For V7.0.0.0 through 7.0.0.45:
o Upgrade to 7.0.0.45 and then apply Interim Fix PH04060
WebSphere Application Server V7 and V8 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Important Note
IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site. Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.
Reference
Complete CVSS v3 Guide
On-line Calculator v3
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
The vulnerability was reported to IBM by noxxx of Chaitin Tech
Change History
10 December 2018: original document published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
- ------------------------------------------------------------------------------
Security Bulletin: Potential Privilege Escalation Vulnerability in WebSphere
Application Server (CVE-2018-1901)
Security Bulletin
Document information
More support for: WebSphere Application Server
Software version: 8.5, 9.0, Liberty
Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Software edition: Advanced, Base, Developer, Enterprise, Express, Network
Deployment, Single Server, Liberty
Reference #: 0738727
Modified date: 10 December 2018
Summary
There is a timing window where there could be a privilege escalation
vulnerability in WebSphere Application Server.
Vulnerability Details
CVEID: CVE-2018-1901
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to
temporarily gain elevated privileges on the system, caused by incorrect cached
value being used.
CVSS Base Score: 5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/152530 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM WebSphere
Application Server:
o Liberty
o Version 9.0
o Version 8.5
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing the APAR for each named product as soon as practical.
For WebSphere Application Server Liberty:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH02811
- --OR--
o Apply Fix Pack 18.0.0.4 or later (targeted availability 4Q 2018).
For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V9.0.0.0 through 9.0.0.9:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH02811
- --OR--
o Apply Fix Pack 9.0.0.10 or later (targeted availability 4Q 2018).
For V8.5.0.0 through 8.5.5.14:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH02811
- --OR--
o Apply Fix Pack 8.5.5.15 or later (targeted availability 1Q 2019).
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Reference
Complete CVSS v3 Guide
On-line Calculator v3
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
10 December 2018: original document published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
- ------------------------------------------------------------------------------
Security Bulletin: Potential cross-site request forgery in WebSphere
Application Server Admin Console (CVE-2018-1926)
Security Bulletin
Document information
More support for: WebSphere Application Server
Software version: 9.0, 8.5, 8.0, 7.0
Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS
Software edition: Advanced, Base, Developer, Enterprise, Express, Network Deployment, Single Server
Reference #: 0742301
Modified date: 10 December 2018
Summary
There is a potential cross-site request forgery in WebSphere Application Server
Admin Console (CVE-2018-1926)
Vulnerability Details
CVEID: CVE-2018-1926
DESCRIPTION: IBM WebSphere Application Server Admin Console is vulnerable to
cross-site request forgery, caused by improper validation of user-supplied
input. By persuading a user to visit a malicious URL, a remote attacker could
send a specially-crafted request. An attacker could exploit this vulnerability
to perform CSRF attack and update available applications.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/152992 for the current
score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
Affected Products and Versions
This vulnerability affects the following:
o WebSphere Application Server Version 9.0
o WebSphere Application Server Version 8.5
o WebSphere Virtual Enterprise Version 8.0
o WebSphere Virtual Enterprise Version 7.0
Remediation/Fixes
The recommended solution is to apply the interim fix, Fix Pack or PTF
containing the APAR for each named product as soon as practical.
For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:
For V9.0.0.0 through 9.0.0.10:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH04234
- --OR--
o Apply Fix Pack 9.0.0.10 or later (targeted availability 4Q 2018).
For V8.5.0.0 through 8.5.5.14:
o Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH04234
- --OR--
o Apply Fix Pack 8.5.5.15 or later (targeted availability 1Q 2019).
For WebSphere Virtual Enterprise Edition:
For V8.0:
o Contact IBM Support
For V7.0:
o Contact IBM Support
WebSphere Virtual Enterprise V7 and V8 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Reference
Complete CVSS v3 Guide
On-line Calculator v3
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
10 December 2018: Original Document published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
Cross reference information
Product Component Platform Version Edition
WebSphere Virtual Enterprise Platform Independent 7.0, 8.0
- --------------------------END INCLUDED TEXT--------------------
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