Horizon Alert
Summary of the vulnerability and why it matters
A critical vulnerability in ColdFusion could allow an unauthorized user to access sensitive files on the system. This issue involves a path traversal flaw that enables an attacker to read files outside of their intended access. The complexity of exploitation is low and does not require any action from a user, making it a significant concern for systems running this technology.
- Attackers can read unauthorized files.
- It impacts web applications and APIs.
- Confirm if ColdFusion is in use.
Attack Path
How an attacker could exploit the issue
An attacker could exploit this vulnerability by sending a specially crafted request to an exposed ColdFusion application. This request would leverage the path traversal flaw to read files from the server's file system that are outside the web root. Successful exploitation allows the attacker to access sensitive information, potentially leading to further compromise.
- Unauthenticated access to a ColdFusion application.
- Specially crafted request accessing unauthorized files.
- Arbitrary file read of sensitive information.
Live Threat
Current exploitation, exposure, and threat context
When supported by the advisory, this vulnerability could allow an unauthenticated attacker to read arbitrary files from the underlying file system, potentially exposing sensitive system or user data outside the application's intended scope.
- Sensitive files on the system.
- Arbitrary file reads over the network.
- Unauthorized access to system information.
Operational Fix
Recommended remediation, mitigation, and detection steps
Real-world ownership of this Improper Limitation of a Pathname to a Restricted Directory vulnerability in ColdFusion hinges on identifying the specific application or service utilizing the affected ColdFusion instance. The initial crucial step is to locate all instances of ColdFusion within your environment, determine their reachability from external networks, and assess their business criticality to prioritize remediation efforts. Subsequently, the accountable owner for each identified instance must be confirmed to initiate a coordinated response and plan for mitigating the risk of arbitrary file system reads.
- Application owners must lead remediation efforts.
- Verify ColdFusion instance reachability and criticality.
- Plan for risk-based maintenance and patching.
