CVE-2020-4229Network attack vector

Session hijacking via logout cookie reuse

Published Jun 5, 2020 · Updated Sep 16, 2024

Session fixation in IBM MobileFirst Platform Foundation 8.0.0.0 allows remote attackers to reuse a logged-out user's session. The application leaves its validation cookie valid after logout instead of invalidating it, so a copied cookie continues to authenticate requests. Exploitation requires possession of another user's retained cookie and grants access within that user's session, including its data and permitted actions.

CVSS severity5.6
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Session fixation in IBM MobileFirst Platform Foundation 8.0.0.0 allows remote attackers to reuse a logged-out user's session. The application leaves its validation cookie valid after logout instead of invalidating it, so a copied cookie continues to authenticate requests. Exploitation requires possession of another user's retained cookie and grants access within that user's session, including its data and permitted actions.

The record

CVE
CVE-2020-4229
Published
Jun 5, 2020
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM MobileFirst Platform Foundation
Classifications
T1550.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 5, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.0.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM MobileFirst Platform Foundationversion=8.0.0.0

Published CVSS scores

5.6IBMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo