Security Bulletin
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:
- Liberty
- Version 9.0
- 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:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH02811
--OR--
· Apply Fix Pack 18.0.0.4 or later.
For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition:
For V9.0.0.0 through 9.0.0.9:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH02811
--OR--
· Apply Fix Pack 9.0.0.10 or later.
For V8.5.0.0 through 8.5.5.14:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH02811
--OR--
· Apply Fix Pack 8.5.5.15 or later.
Get Notified about Future Security Bulletins
References
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
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:
06 March 2019
UID
ibm10738727