Security Bulletin: Financial Transaction Manager for ACH Services is affected by a potential logout session timeout (CVE-2020-4555)

Summary

Login session may not be invalidated in a timely manner on timeout.

Vulnerability Details

CVEID:CVE-2020-4555
**DESCRIPTION:**IBM Financial Transaction Manager for High Value Payments for Multi-Platform does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183328 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Remediation/Fixes

Workarounds and Mitigations

HTTP session logout timeout
When the browser HTTP session for a Control Center user times out, the user is logged out. However, someone can possibly intercept and override the logout timeout. To avoid this override, configure the com.ibm.ws.security.web.logoutOnHTTPSessionExpire property in WebSphere Application Server. For more information about this property, see the WebSphere Application Server documentation.