Security Bulletin: Information disclosure vulnerability in WebSphere Application Server (CVE-2019-4441)

Security Bulletin

Summary

There is a potential information disclosure vulnerability in IBM WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2019-4441
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to obtain sensitive information when a stack trace is returned in the browser.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/163177 for the current score
CVSS Environmental Score*: Undefined
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

This vulnerability affects the following versions and releases of IBM WebSphere Application Server:

Liberty
Version 9.0
Version 8.5
Version 8.0
Version 7.0

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 using jsp-2.2 or jsp-2.3:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH13983
--OR--
· Apply Fix Pack 19.0.0.11 or later (targeted availability 4Q2019).

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

For V9.0.0.0 through 9.0.5.1:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH13983
--OR--
· Apply Fix Pack 9.0.5.2 or later (targeted availability 4Q2019).

For V8.5.0.0 through 8.5.5.16:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH13983
--OR--
· Apply Fix Pack 8.5.5.17 or later (targeted availability 1Q2020).

For V8.0.0.0 through 8.0.0.15:
· Upgrade to 8.0.0.15 and then apply Interim Fix PH13983

For V7.0.0.0 through 7.0.0.45:
· Upgrade to 7.0.0.45 and then apply Interim Fix PH13983

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.

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Acknowledgement

The vulnerability was reported to IBM by Lukasz Plonka

Change History

01 October 2019: original document published

*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.

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Tips

Security Bulletin: Information disclosure vulnerability in WebSphere Application Server (CVE-2019-4441)