Oracle Application Express Cross Site Scripting

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SEC Consult Vulnerability Lab Security Advisory < 20150716-0 >  
=======================================================================  
title: Permanent Cross-Site Scripting  
product: Oracle Application Express  
vulnerable version: All versions prior to 4.2.3.00.08  
fixed version: 4.2.3.00.08  
CVE number: CVE-2015-2655  
impact: high  
homepage: https://apex.oracle.com/i/index.html  
found: 2014-05-28  
by: F. Lukavsky  
SEC Consult Vulnerability Lab  
  
An integrated part of SEC Consult  
Berlin - Frankfurt/Main - Montreal - Singapore  
Vienna (HQ) - Vilnius - Zurich  
  
https://www.sec-consult.com  
=======================================================================  
  
Vendor description:  
- -------------------  
"Oracle Application Express (Oracle APEX) is Oracle's primary tool for  
developing Web applications with SQL and PL/SQL. Using only a web browser, you  
can develop and deploy professional Web-based applications for desktops and  
mobile devices. It is a fully supported, no cost option of the Oracle  
Database, and is installed by default in all editions of the Oracle Database.  
Even those without SQL and PL/SQL knowledge, can still easily install the many  
built-in packaged applications, such as Survey Builder, Customer Tracker, and  
P-Track (for tracking projects)."  
  
http://www.oracle.com/technetwork/developer-tools/apex/overview/index.html  
  
  
Vulnerability overview/description:  
- -----------------------------------  
The gReport Controls Sort Widget is prone to permanent Cross-Site Scripting.  
The setting "display as" of the column attributes is ignored for the filter  
list.  
  
  
Proof of concept:  
- -----------------  
Adding the following field to a table will cause an alertbox to display the  
currently set cookies as soon as the sort options are selected for the column:  
  
xss-entry<img src=x onerror=alert(document.cookie)>  
  
  
Vulnerable / tested versions:  
- -----------------------------  
All versions prior to 4.2.3.00.08  
  
  
Vendor contact timeline:  
- ------------------------  
2014-08-13: Contacting vendor through [email protected]  
2014-08-14: Vendor response - vulnerbility will be investigated  
2014-08-15: Vendor response - issue will be tracked as S0484336  
2014-08-22: Status update: Under investigation / Being fixed in main codeline  
2014-09-24: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2014-10-24: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2014-11-24: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2014-12-24: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-01-24: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-02-25: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-03-25: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-04-25: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-05-23: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-06-25: Status update: Issue fixed in main codeline, scheduled for a future CPU  
2015-07-11: Issue is fixed in upcoming CPU, patches will be released on 2015-07-14  
2015-07-16: Coordinated release of the security advisory  
  
  
Solution:  
- ---------  
Upgrade to Oracle Application Express 4.2.3.00.08.  
  
  
Workaround:  
- -----------  
Refrain from using the gReport Controls Sort Widget.  
  
  
Advisory URL:  
- -------------  
https://www.sec-consult.com/en/Vulnerability-Lab/Advisories.htm  
  
  
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
SEC Consult Vulnerability Lab  
  
SEC Consult  
Berlin - Frankfurt/Main - Montreal - Singapore - Vienna (HQ) - Vilnius - Zurich  
  
About SEC Consult Vulnerability Lab  
The SEC Consult Vulnerability Lab is an integrated part of SEC Consult. It  
ensures the continued knowledge gain of SEC Consult in the field of network  
and application security to stay ahead of the attacker. The SEC Consult  
Vulnerability Lab supports high-quality penetration testing and the evaluation  
of new offensive and defensive technologies for our customers. Hence our  
customers obtain the most current information about vulnerabilities and valid  
recommendation about the risk profile of new technologies.  
  
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  
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EOF F. Lukavsky / @2015  
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