Security Bulletin: Information disclosure in WebSphere Application Server (CVE-2020-4329)

Security Bulletin

Summary

Information disclosure in WebSphere Application Server. This has been addressed.

Vulnerability Details

CVEID: CVE-2020-4329
DESCRIPTION: IBM WebSphere Application Server could allow a remote, authenticated attacker to obtain sensitive information, caused by improper parameter checking. This could be exploited to conduct spoofing attacks.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/177841 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

Affected Product(s)	Version(s)
WebSphere Application Server Liberty	17.0.0.3 - 20.0.0.4
WebSphere Application Server	9.0
WebSphere Application Server	7.0
WebSphere Application Server	8.0
WebSphere Application Server	8.5

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing the APAR for each named product as soon as practical. For WebSphere Application Server Liberty:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH20847
--OR--
· Apply Fix Pack 20.0.0.5 or later (targeted availability 2Q2020).

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

For V9.0.0.0 through 9.0.5.3:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH20847.
--OR--
· Apply Fix Pack 9.0.5.4 or later (targeted availability 2Q2020).

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 PH20847.
--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 PH20847.

For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and then apply Interim Fix PH20847.

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

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

27 April 2020: Initial Publication

*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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Tips

Security Bulletin: Information disclosure in WebSphere Application Server (CVE-2020-4329)