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Security Bulletin: WebSphere Application Server is vulnerable to a remote code execution vulnerability (CVE-2020-4450)

Security Bulletin


Summary

WebSphere Application Server is vulnerable to a remote code execution vulnerability. This has been addressed.

Vulnerability Details

CVEID:   CVE-2020-4450
DESCRIPTION:   IBM WebSphere Application Server traditional could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181231 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s) Version(s)
WebSphere Application Server 9.0
WebSphere Application Server 8.5

Remediation/Fixes

For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition:

For V9.0.0.0 through 9.0.5.4:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH25074
--OR--
· Apply Fix Pack 9.0.5.5 or later (targeted availability 3Q2020). 

For V8.5.0.0 through 8.5.5.17:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH25074
--OR--
· Apply Fix Pack 8.5.5.18 or later (targeted availability 3Q2020).

Additional interim fixes may be available and linked off the interim fix download page.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

The vulnerability was reported to IBM by tint0 working with Trend Micro Zero Day Initiative and Kylinking of NSFOCUS Security Team

Change History

04 June 2020: Initial Publication
15 July 2020: Ifixes added for versions 9.0.0.9 - 9.0.0.11 and 8.5.5.12 - 8.5.5.15

*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

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.

Document Location

Worldwide

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"8.5,9.0","Edition":"Advanced,Base,Developer,Enterprise,Express,Network Deployment,Single Server"}]

Document Information

Modified date:
15 July 2020

UID

ibm16220294