TIBCO Silver Fabric Vulnerable to Reflected Cross-Site Scripting attacks

  Original release date: February 13, 2019
  Last revised: --
  Source: TIBCO Software Inc.


Systems Affected

  TIBCO Silver Fabric versions 5.8.1 and below

  The following component is affected:

    * SOAP Admin API


Description

  The component listed above contains a vulnerability that may allow reflected
  cross-site scripting (XSS) attacks.


Impact

  The impact of this vulnerability includes the theoretical possibility that
  an unauthenticated attacker could perform administrative functions provided
  by the web interface of the affected system.

  CVSS v3 Base Score: 8.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)


Solution

  TIBCO has released updated versions of the affected component which address
  this issue.

  For each affected system, update to the corresponding software versions:

  TIBCO Silver Fabric versions 5.8.1 and below update to version 6.0.0
    or higher

  Note that the affected component has been deprecated in the systems affected.
  For customers that might not be able to update the software as quickly as
  needed, an alternate remediation is to disable the affected component. The
  component can be disabled by removing the configuration lines that activate
  it.

  To disable the affected component:
    - find the file $SF_HOME/webapps/livecluster/WEB-INF/web.xml (where
      $SF_HOME corresponds to the root folder where TIBCO Silver Fabric is
      installed.)
    - open the file in a text editor, and remove the lines that look like this:

    <servlet-mapping>
      <servlet-name>AxisServlet</servlet-name>
      <url-pattern>/webservices/*</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
      <servlet-name>AxisServlet</servlet-name>
      <url-pattern>/WebServices/*</url-pattern>
    </servlet-mapping>


Acknowledgments

  TIBCO would like to extend its appreciation to Robert Podsiadlo of ING Tech
  Poland for discovery of this vulnerability.


References

  http://www.tibco.com/services/support/advisories
  CVE-2018-12409