Multiple Vulnerabilities in Adobe ColdFusion Could Allow for Remote Code Execution (APSB17-30)

ITS Advisory Number: 
2017-085
Date(s) Issued: 
Tuesday, September 12, 2017
Subject: 
Multiple Vulnerabilities in Adobe ColdFusion Could Allow for Remote Code Execution (APSB17-30)
Overview: 

Multiple vulnerabilities have been discovered in Adobe ColdFusion, the most severe of which could allow for remote code execution. Adobe ColdFusion is a web application development platform. Successful exploitation of the most severe of these vulnerabilities could result in the attacker gaining control of the affected system.  Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

Systems Affected: 
  • Adobe ColdFusion (2016) update 4 and earlier versions

  • Adobe ColdFusion 11 update 12 and earlier versions

RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

Adobe ColdFusion is prone to multiple vulnerabilities, the most severe of which could allow for remote code execution.

  • A deserialization of untrusted data that could lead to remote code execution (CVE-2017-11283, CVE-2017-11284).

  • An improper neutralization of input during web page generation vulnerability that could lead to information disclosure (CVE-2017-11285).

  • An improper restriction of XML external entity reference vulnerability that could lead to information disclosure (CVE-2017-11286).

Successful exploitation of the most severe of these vulnerabilities could result in the attacker gaining control of the affected system. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

Actions: 
  • After appropriate testing, immediately apply applicable patch provided by Adobe to vulnerable systems.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit websites or follow links provided by unknown or untrusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.