Security Bulletin: Impersonation Issue Affects IBM WebSphere Portal (CVE-2018-1672)
Impersonation may lead to incorrect user context in IBM WebSphere Portal (CVE-2018-1672)
DESCRIPTION: IBM WebSphere Portal may fail to set the correct user context in certain impersonation scenarios, which can allow a user to act with the identity of a different user.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/144958 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
|IBM WebSphere Portal||184.108.40.206 - 220.127.116.11 CF15|
|IBM WebSphere Portal||18.104.22.168 - 22.214.171.124 CF15|
|IBM WebSphere Portal||126.96.36.199 - 188.8.131.52 CF23|
|IBM WebSphere Portal||184.108.40.206 - 220.127.116.11 CF30|
For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.
|IBM WebSphere Portal||9.0||PH00088||Upgrade to Cumulative Fix 16 (CF16).|
|IBM WebSphere Portal||8.5||PH00088||Upgrade to Cumulative Fix 16 (CF16).|
|IBM WebSphere Portal||18.104.22.168 through 8.0.01||PH00088||Upgrade to Fix Pack 22.214.171.124 with Cumulative Fix 23 (CF23) and then apply the Interim Fix PH00088.|
|IBM WebSphere Portal||126.96.36.199 through 188.8.131.52||PH00088||Upgrade to Fix Pack 184.108.40.206 with Cumulative Fix 30 (CF30) and then apply the Interim Fix PH00088.|
Workarounds and Mitigations
Disable impersonation feature. See https://www.ibm.com/support/knowledgecenter/SSHRKX_8.5.0/mp/admin-system/impers_enable_disable.html for details.
Get Notified about Future Security Bulletins
25 September 2018: Original version 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.
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.