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AUSCERT External Security Bulletin Redistribution
ESB-2020.3422
WebSphere Application Server - information disclosure
vulnerability (CVE-2020-4576)
1 October 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: WebSphere Application Server
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
IBM i
Windows
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4576
Original Bulletin:
https://www.ibm.com/support/pages/node/6339807
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Security Bulletin: WebSphere Application Server is vulnerable to an information disclosure
vulnerability (CVE-2020-4576)
Security Bulletin
Summary
WebSphere Application Server is vulnerable to an information disclosure
vulnerability. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4576
DESCRIPTION: IBM WebSphere Application Server traditional could allow a
remote attacker to obtain sensitive information with a specially-crafted
sequence of serialized objects.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
184428 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
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 9.0.5.5:
· Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH27157
- --OR--
· Apply Fix Pack 9.0.5.6 or later (targeted availability 4Q2020).
For V8.5.0.0 through 8.5.5.18:
· Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH27157
- --OR--
· Apply Fix Pack 8.5.5.19 or later (targeted availability 1Q2021).
For V8.0.0.0 through 8.0.0.15:
· Upgrade to 8.0.0.15 and then apply Interim Fix PH27157
For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and then apply Interim Fix PH27157
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
Acknowledgement
This vulnerability was reported to IBM by Kylinking.
Change History
30 Sept 2020: Initial Publication
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