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Security Bulletin: WebSphere Application Server Liberty is vulnerable to Cross-site Scripting (CVE-2020-4303, CVE-2020-4304)

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 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.
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 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.
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)
WebSphere Application Server Liberty 17.0.0.3 - 20.0.0.3

Remediation/Fixes

The recommended solution is to apply the interim fix or Fix Pack containing APAR PH22080 for each named product as soon as practical.

For WebSphere Application Server Liberty 17.0.0.3 - 20.0.0.3 using the oauth-2.0,  openidConnectServer-1.0, openidConnectClient-1.0, or samlWeb-2.0 features: 
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH22080
--OR--
· Apply Liberty Fix Pack 20.0.0.4 or later (targeted availability 1Q2020).

Additional interim fixes may be available and linked off the interim fix download page.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by Vahagn

Change History

31 March 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

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Component":"WebSphere Application Server - 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"},{"code":"PF017","label":"Mac OS"}],"Version":"Liberty","Edition":"Liberty","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
08 April 2020

UID

ibm16147195

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