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AUSCERT External Security Bulletin Redistribution
ESB-2020.1732.2
Security Bulletin: WebSphere Application Server Liberty is vulnerable to
Cross-site Scripting that affects Liberty for Java for IBM
Cloud (CVE-2020-4303, CVE-2020-4304)
18 May 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server Liberty
Publisher: IBM
Operating System: Linux variants
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-4304 CVE-2020-4303
Reference: ESB-2020.1298
ESB-2020.1283
ESB-2020.1161
Original Bulletin:
https://www.ibm.com/support/pages/node/6209262
Revision History: May 18 2020: Sending with new PGP key
May 15 2020: Initial Release
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WebSphere Application Server Liberty is vulnerable to Cross-site Scripting that
affects Liberty for Java for IBM Cloud (CVE-2020-4303, CVE-2020-4304)
Document Information
More support for: Liberty for Java
Operating system(s): Linux
Document number: 6209262
Modified date: 14 May 2020
Security Bulletin
Summary
There is a cross-site scripting vulnerability in the OAuth, OpenID Connect and
SAML features. This has been addressed.
Vulnerability Details
CVEID: CVE-2020-4303
DESCRIPTION: IBM WebSphere Application Server - Liberty 17.0.0.3 through
20.0.0.3 is vulnerable to cross-site scripting. This vulnerability allows users
to embed arbitrary JavaScript code in the Web UI thus altering the intended
functionality potentially leading to credentials disclosure within a trusted
session. IBM X-Force ID: 176668.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
176668 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
CVEID: CVE-2020-4304
DESCRIPTION: IBM WebSphere Application Server - Liberty 17.0.0.3 through
20.0.0.3 is vulnerable to cross-site scripting. This vulnerability allows users
to embed arbitrary JavaScript code in the Web UI thus altering the intended
functionality potentially leading to credentials disclosure within a trusted
session. IBM X-Force ID: 176670.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
176670 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Affected Products and Versions
+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|Liberty for Java |3.37 |
+--------------------+----------+
Remediation/Fixes
To upgrade to Liberty for Java 3.44-20200430-1451 or higher, you must re-stage
or re-push your application
To find the current version of Liberty for Java in IBM Cloud being used, from
the command-line Cloud Foundry client by running the following commands:
cf ssh <appname> -c cat "staging_info.yml"
Look for the following lines:
{"detected_buildpack":"Liberty for Java(TM) (WAR, liberty-19.0.0_9,
buildpack-v3.37-20191002-1726, ibmjdk-1.8.0_sr5fp41-20190919, env)
","start_command":".liberty/initial_startup.rb"}
To re-stage your application using the command-line Cloud Foundry client, use
the following command:
cf restage <appname>
To re-push your application using the command-line Cloud Foundry client, use
the following command:
cf push <appname>
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
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