Security Bulletin
Summary
WebSphere Application Server is vulnerable to an information exposure vulnerability. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4643
DESCRIPTION: IBM WebSphere Application Server is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185590 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 PH27509
--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 PH27509
--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 PH27509
For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and then apply Interim Fix PH27509
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
The vulnerability was reported to IBM by Kylinking of NSFOCUS Security Team.
Change History
17 Sept 2020: Initial Publication
29 Sept 2020: Added interim fix
*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:
29 September 2020
UID
ibm16334311