CA AWI 12.0 / 12.1 / 12.2 Cross Site Scripting

`SEC Consult Vulnerability Lab Security Advisory < 20190124-0 >  
=======================================================================  
title: Cross-site scripting  
product: CA Automic Workload Automation Web Interface (AWI)  
(formerly Automic Automation Engine, UC4)  
vulnerable version: 12.0, 12.1, 12.2  
fixed version: 12.0.6 HF2, 12.1.3 HF3, 12.2.1 HF1  
CVE number: CVE-2019-6504  
impact: medium  
homepage: https://www.ca.com  
found: 2018-10-15  
by: Marc Nimmerrichter (Office Vienna)  
SEC Consult Vulnerability Lab  
  
An integrated part of SEC Consult  
Europe | Asia | North America  
  
https://www.sec-consult.com  
  
=======================================================================  
  
Vendor description:  
-------------------  
"The modern enterprise needs to orchestrate a complex, diverse landscape of  
applications, platforms and technologies. Workload automation can prove a  
critical differentiator, but only if it provides intelligent automation driven  
by data analytics.  
[...]  
CA Automic Workload Automation gives you the agility, speed, visibility and  
scalability needed to respond to the constantly changing technology landscape.  
It centrally manages and automates the execution of business processes  
end-to-end; across mainframe, cloud and hybrid environments in a way that never  
stopsaeven when doing an upgrade to the next version."  
  
Source: https://www.ca.com/us/products/workload-automation-solution.html  
  
  
Business recommendation:  
------------------------  
Be aware that restrictions on privileges can be bypassed and that attackers may  
be able to take over other users' accounts. SEC Consult recommends to apply the  
vendor patch as soon as possible.  
  
  
Vulnerability overview/description:  
-----------------------------------  
The Automation Engine Web Interface, short AWI, is susceptible to a  
persistent cross-site scripting attack (XSS). The origin of this vulnerability  
is in an outdated version of the Vaadin framework (version 7.7.9), which is  
heavily used in the implementation of the UI. This version of the Vaadin  
framework is vulnerable to an XSS vulnerability in tooltips [1]. If attackers  
can control the content of tooltips created with the framework, they can execute  
arbitrary JavaScript code in the context of the user viewing the tooltip. AWI  
uses tooltips for various data-fields, e.g. for the title of objects created.  
Thus, if a user has the privilege to create or edit objects, they can inject  
JavaScript code, which will get executed by other users if they move their  
cursor over the text containing the tooltip.  
  
[1] https://github.com/vaadin/framework/issues/8731  
  
  
Proof of concept:  
-----------------  
The vulnerability can be reproduced by creating/editing any object in AWI and  
using a normal JavaScript payload, e.g. with an onerror handler.  
  
Because tooltips are only shown in AWI when the text length exceeds the column  
width, the text needs to be padded with some sample-text to make sure the  
JavaScript code gets executed.  
  
  
Vulnerable / tested versions:  
-----------------------------  
The tested version of AWI was 12.2.0.  
  
  
Vendor contact timeline:  
------------------------  
2018-10-18: SEC Consult contacts vendor through [email protected] via encrypted email.  
2018-10-25: Vendor confirms the receipt of the vulnerability information.  
2018-11-22: Vendor confirms the vulnerability and asks for postponement of  
advisory release date.  
2018-12-11: Vendor provides planned patch numbers.  
2018-01-17: Vendor informs SEC Consult that patches have been published.  
2019-01-18: CA Technologies and SEC Consult define January 24th 2019 as release  
date for SEC Consult advisory and CA Technologies Security Notice.  
2019-01-24: Public release of security advisory  
  
  
Solution:  
---------  
The vendor provides patched versions:  
  
Automic.Web.Interface 12.0.6 HF2  
Automic.Web.Interface 12.1.3 HF3  
Automic.Web.Interface 12.2.1 HF1  
  
Available from: https://downloads.automic.com/  
  
The vendor released a security advisory which is available here:  
https://support.ca.com/us/product-content/recommended-reading/security-notices/CA20190124-01-security-notice-for-ca-automic-workload-automation.html  
  
  
Workaround:  
-----------  
None  
  
  
Advisory URL:  
-------------  
https://www.sec-consult.com/en/vulnerability-lab/advisories/index.html  
  
  
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  
SEC Consult Vulnerability Lab  
  
SEC Consult  
Europe | Asia | North America  
  
About SEC Consult Vulnerability Lab  
The SEC Consult Vulnerability Lab is an integrated part of SEC Consult. It  
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EOF Marc Nimmerrichter / @2019  
  
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