Security Bulletin
Summary
WebSphere Application Server is vulnerable to a remote code execution vulnerability. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4589
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to execute arbitrary code on the system with a specially-crafted sequence of serialized objects from untrusted sources.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/184585 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/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 |
| WebSphere Application Server | 8.0 |
| WebSphere Application Server | 7.0 |
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 PH27414
--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 PH27414
--OR--
· Apply Fix Pack 8.5.5.18 or later (targeted availability 3Q2020).
For V8.0.0.0 through 8.0.0.15:
· Upgrade to 8.0.0.15 and then apply Interim Fix PH27414
For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and then apply Interim Fix PH27414
Additional interim fixes may be available and linked off the interim fix download page.
WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product.
Workarounds and Mitigations
None
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References
Acknowledgement
This vulnerability was reported to IBM by Kylinking of NSFOCUS Security Team.
Change History
12 Aug 2020: Initial Publication
20 Aug 2020: Removed unnecessary information from description
*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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
20 August 2020
UID
ibm16258333