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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3652
         Security Bulletin: Multiple vulnerabilities in WebSphere
                        Application Server Liberty
                             27 September 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           WebSphere Application Server Liberty
Publisher:         IBM
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4305 CVE-2019-4304 

Original Bulletin: 
   https://www.ibm.com/support/pages/node/960171

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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).

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support
alerts like this.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

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

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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