CVE-2020-4914: IBM Cloud Pak System Software Suite session fixation

Severity: medium (CVSS 4.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-05 · updated 2026-06-17
Weakness: CWE-613

Description

IBM Cloud Pak System Suite 2.3.3.0 through 2.3.3.5 does not invalidate session after logout which could allow a local user to impersonate another user on the system. IBM X-Force ID: 191290.

Affected products

IBM Cloud Pak System: from 2.3.3.0 before 2.3.3.6 — fixed in 2.3.3.6

How to fix

Upgrade to a fixed version: IBM Cloud Pak System 2.3.3.6. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/191290
https://www.ibm.com/support/pages/node/6967181
https://exchange.xforce.ibmcloud.com/vulnerabilities/191290
https://www.ibm.com/support/pages/node/6967181

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