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Security Bulletin: Multiple vulnerabilities in WebSphere Application Server Liberty (CVE-2019-4304, CVE-2019-4305)

Security Bulletin


Summary

There is an information disclosure and a bypass security vulnerability in WebSphere Application Server Liberty. These vulnerabilities have been addressed.

Vulnerability Details

CVEID: CVE-2019-4304
DESCRIPTION: IBM WebSphere Application Server - Liberty could allow a remote attacker to bypass security restrictions caused by improper session validation.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160950 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2019-4305
DESCRIPTION: IBM WebSphere Application Server Liberty could allow a remote attacker to obtain sensitive information caused by the improper setting of a cookie.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/160951 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

These vulnerabilities affect the following versions and releases of IBM WebSphere Application Server:

  • Liberty

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 appSecurity-1.0 or appSecurity-2.0 feature:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH15518
--OR--
· Apply Fix Pack 19.0.0.10 or later (targeted availability 4Q2019).

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

26 September 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.

Document Location

Worldwide

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Component":"Liberty","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"All Versions","Edition":"Liberty","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
26 September 2019

UID

ibm10960171

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