Oracle Application Express AnyChart Flash-Based Cross Site Scripting

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Oracle Application Express (AnyChart) Flash-based Cross-Site Scripting Vulnerability  
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[-] Software Link:  
  
https://apex.oracle.com/  
  
  
[-] Affected Versions:  
  
All versions prior to 5.1.4.00.08.  
  
  
[-] Vulnerability Description:  
  
The vulnerability is located in the OracleAnyChart.swf file. User input passed through  
the "__externalobjid" GET parameter is not properly sanitized before being passed to the  
"ExternalInterface.call" method. This can be exploited to carry out reflected Cross-Site  
Scripting (XSS) attacks by tricking a victim user into opening an URL like the following:  
  
https://[apex-app]/i/flashchart/anychart_6/swf/OracleAnyChart.swf?__externalobjid=%27))}catch(e){evil_js_code()}//  
  
  
[-] Solution:  
  
Update to version 5.1.4.00.08 or later.  
  
  
[-] Disclosure Timeline:  
  
[13/11/2017] - Both vendors notified (using the [email protected] and [email protected] addresses)  
[14/11/2017] - Acknowledgment received from AnyChart  
[14/11/2017] - Acknowledgment received from Oracle  
[15/11/2017] - AnyChart said this issue has been investigated in 2014 and they sent a security update to Oracle  
[22/11/2017] - Oracle response stating they filed a security bug to track this issue  
[12/01/2018] - Oracle response stating the issue will be fixed in the upcoming Critical Patch Update (CPU)  
[16/01/2018] - Oracle fixed the issue in the January Critical Patch Update (CPU)  
[31/12/2018] - Public disclosure  
  
  
[-] CVE Reference:  
  
The Common Vulnerabilities and Exposures project (cve.mitre.org)  
has assigned the name CVE-2018-2699 to this vulnerability.  
  
  
[-] Credits:  
  
Vulnerability discovered by Egidio Romano.  
  
  
[-] Original Advisory:  
  
http://karmainsecurity.com/KIS-2018-01  
  
  
[-] Other References:  
  
https://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html  
`