Security Bulletin
Summary
There are multiple security vulnerabilities that affect the IBM WebSphere Application Server in the IBM Cloud.
There is a potential spoofing vulnerability in IBM WebSphere Application Server. There is a vulnerability in the IBM HTTP Server used by WebSphere Application Server. There is a potential cross-site scripting vulnerability in the Admin Console for WebSphere Application Server. There is a potential denial of service vulnerability in WebSphere Application Server.
Vulnerability Details
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to spoof connection information which could be used to launch further attacks against the system.
CVSS Base Score: 3.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152531
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N)
DESCRIPTION: Apache HTTP Server could allow a remote attacker to bypass security restrictions, caused by checking the session expiry time before decoding the session by mod_session. An attacker could exploit this vulnerability to ignore session expiry time and gain access to the application.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156006
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
DESCRIPTION: IBM WebSphere Application Server is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/155946 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
DESCRIPTION: IBM WebSphere Application Server is vulnerable to a denial of service, caused by improper handling of request headers. A remote attacker could exploit this vulnerability to cause the consumption of Memory.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156242 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
This vulnerability affects the following versions and releases of IBM WebSphere Application Server in IBM Cloud:
- Liberty
- Version 9.0
- Version 8.5
Remediation/Fixes
To patch an existing service instance, refer to the IBM WebSphere Application Server bulletins listed below
- Potential Spoofing vulnerability in WebSphere Application Server (CVE-2018-1902)
- Security vulnerability in the IBM HTTP Server (CVE-2018-17199)
- Cross-site scripting vulnerability in WebSphere Application Server Admin Console (CVE-2019-4030)
- Potential denial of service vulnerability in WebSphere Application Server (CVE-2019-4046)
Please see Updating your environment in the KnowlegeCenter for information on applying service.
Alternatively, delete the vulnerable service instance and create a new instance.
Workarounds and Mitigations
None.
Monitor IBM Cloud Status for Future Security Bulletins
Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.
References
Change History
09 April 2019 - 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
09 April 2019
UID
ibm10870320