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Multiple Vulnerabilities in Adobe ColdFusion Could Allow for Arbitrary Code Execution (APSB18-33)

MS-ISAC ADVISORY NUMBER:

2018-099

DATE(S) ISSUED:

09/11/2018

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe ColdFusion, the most severe of which could allow for arbitrary code execution. Adobe ColdFusion is a web application development platform. Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. 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.

THREAT INTELLIGENCE:

There are no reports of these vulnerabilities being exploited in the wild.

November 11 – UPDATED THREAT INTELLIGENCE:
CVE-2018-15961 was used by a Chinese-based APT group in order to upload the China Chopper webshell to vulnerable servers.

SYSTEMS AFFECTED:

  • ColdFusion (2018 release) July 12 release (version 2018.0.0.310739)
  • ColdFusion (2016) release) Update 6 and earlier versions
  • ColdFusion 11 Update 14 and earlier versions

RISK:

Government:
  • Large and medium government entities: HIGH
  • Small government entities: MEDIUM
Businesses:
  • Large and medium business entities: HIGH
  • Small business entities: MEDIUM
Home Users:
LOW

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Adobe ColdFusion, the most severe of which could allow for arbitrary code execution. The details of these vulnerabilities are as follows:

  • A deserialization of untrusted data vulnerability that could allow for arbitrary code execution (CVE-2018-15965, CVE-2018-15957, CVE-2018-15958, CVE-2018-15959).
  • A use of a component with a known vulnerability vulnerability that could allow for information disclosure (CVE-2018-15964).
  • A security bypass vulnerability that could allow for arbitrary folder creation (CVE-2018-15963).
  • A directory listing vulnerability that could allow for information disclosure (CVE-2018-15962).
  • An unrestricted file upload vulnerability that could allow for arbitrary code execution (CVE-2018-15961).
  • A use of a component with a known vulnerability vulnerability that could allow for an arbitrary file overwrite (CVE-2018-15960).

Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. 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.

RECOMENDATIONS:

We recommend the following actions be taken:

  • Install the updates provided by Adobe immediately after appropriate testing.
  • 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.

November 11 – UPDATED REFERENCES:

REFERENCES:

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