Security Bulletin: Security vulnerability in Apache CXF affects IBM InfoSphere Master Data Management

Summary

By default, Apache CXF creates a /services page containing a listing of the available endpoint names and addresses. This webpage is vulnerable to a reflected Cross-Site Scripting (XSS) attack via the styleSheetPath, which allows a malicious actor to inject javascript into the web page. This vulnerability affects all versions of Apache CXF prior to 3.4.1 and 3.3.8. In order to resolve the issue mentioned in CVE-2020-13954 with /root/mdm/installedApps/wssv12mdm1Cell01/com.ibm.mdm.mds.appservices.app-MDMInstance.ear/com.ibm.mdm.mds.appserviceswar.war/WEB-INF/lib/cxf-rt-transports-http-3.1.16.jar we have disabled the default webpage.

Vulnerability Details

CVEID:CVE-2020-13954
**DESCRIPTION:**Apache CXF is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the services listing page. A remote attacker could exploit this vulnerability using the styleSheetPath in a specially-crafted URL to execute script in a victim’s Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191650 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

Remediation/Fixes

Upgrade to Feature Pack (FP) MDM v11.6.0.12 or higher.

Workarounds and Mitigations

None