CVE-2025-43563: Adobe ColdFusion Information Disclosure

CVE-2025-43563 Overview

CVE-2025-43563 is an Improper Access Control vulnerability affecting Adobe ColdFusion that enables arbitrary file system read operations. The vulnerability affects ColdFusion versions 2025.1, 2023.13, 2021.19 and earlier, allowing a high-privileged attacker to access or modify sensitive data without proper authorization. This vulnerability is particularly concerning because exploitation does not require user interaction, and the scope is changed, meaning the vulnerability can affect resources beyond the vulnerable component's security scope.

Critical Impact

A high-privileged attacker can leverage this vulnerability to read arbitrary files from the file system and potentially modify sensitive data without proper authorization, with cross-scope impact affecting resources beyond the ColdFusion application.

Affected Products

• Adobe ColdFusion 2025 through Update 1
• Adobe ColdFusion 2023 through Update 13
• Adobe ColdFusion 2021 through Update 19

Discovery Timeline

• May 13, 2025 - CVE-2025-43563 published to NVD
• July 15, 2025 - Last updated in NVD database

Technical Details for CVE-2025-43563

Vulnerability Analysis

This vulnerability stems from improper access control mechanisms within Adobe ColdFusion (CWE-284). The flaw allows authenticated attackers with high privileges to bypass security restrictions and perform arbitrary file system read operations. The changed scope indicates that successful exploitation can impact resources managed by different security authorities than the vulnerable ColdFusion component, potentially exposing sensitive configuration files, credentials, or other protected data across the server environment.

The vulnerability can be exploited remotely over the network without requiring any user interaction, making it particularly dangerous for internet-facing ColdFusion deployments. While the attack requires high privileges, organizations should note that compromised administrative accounts or insider threats could readily leverage this vulnerability.

Root Cause

The root cause of CVE-2025-43563 is inadequate access control validation within ColdFusion's file handling mechanisms. The application fails to properly enforce authorization checks when processing file system operations, allowing authenticated high-privileged users to access files outside their intended scope. This improper access control implementation creates a pathway for attackers to read sensitive files that should be restricted by the application's security boundaries.

Attack Vector

The attack is conducted over the network against vulnerable ColdFusion installations. An attacker with high-level administrative privileges can craft requests that exploit the improper access control mechanism to read arbitrary files from the underlying file system. The lack of user interaction requirements means that attacks can be automated once an attacker gains the necessary privileges. The cross-scope nature of the vulnerability means successful exploitation can compromise data and resources beyond the ColdFusion application itself, potentially affecting the entire server infrastructure.

The vulnerability mechanism involves bypassing file access restrictions through the ColdFusion administrative interfaces. For detailed technical information about the specific exploitation techniques, refer to the Adobe ColdFusion Security Advisory.

Detection Methods for CVE-2025-43563

Indicators of Compromise

• Unusual file access patterns in ColdFusion logs, particularly access to sensitive configuration files or system files outside the webroot
• Administrative API calls attempting to access files in restricted directories such as /etc/, /var/, or Windows system directories
• Anomalous read operations targeting credential files, database configurations, or encryption keys
• Unexpected file path traversal patterns in ColdFusion request logs

Detection Strategies

• Implement file integrity monitoring (FIM) on sensitive system files and ColdFusion configuration directories to detect unauthorized access
• Configure ColdFusion logging to capture detailed file system operations and review logs for suspicious access patterns
• Deploy web application firewall (WAF) rules to detect and block requests containing path traversal sequences or unusual file path references
• Monitor administrative session activity for unusual file access operations that deviate from normal administrative tasks

Monitoring Recommendations

• Enable verbose logging for ColdFusion administrative actions and file system operations
• Implement real-time alerting for access attempts to sensitive system files from the ColdFusion process
• Deploy endpoint detection and response (EDR) solutions configured to monitor ColdFusion process behavior and file access patterns
• Regularly audit privileged account usage and correlate with file system access logs to identify potential exploitation attempts

How to Mitigate CVE-2025-43563

Immediate Actions Required

• Apply the latest security updates from Adobe immediately to all affected ColdFusion installations
• Review and restrict administrative access to ColdFusion instances, limiting high-privileged accounts to essential personnel only
• Implement network segmentation to isolate ColdFusion servers from sensitive internal resources
• Enable enhanced logging and monitoring on all ColdFusion deployments to detect potential exploitation attempts
• Audit all administrative user accounts and remove or disable any unnecessary privileged access

Patch Information

Adobe has released security patches addressing this vulnerability in security bulletin APSB25-52. Organizations should update to the following patched versions:

• ColdFusion 2025: Update 2 or later
• ColdFusion 2023: Update 14 or later
• ColdFusion 2021: Update 20 or later

For detailed patch information and download links, refer to the Adobe ColdFusion Security Advisory.

Workarounds

• Restrict network access to ColdFusion administrative interfaces using firewall rules, limiting access to trusted IP addresses only
• Implement additional authentication layers for administrative access, such as VPN requirements or multi-factor authentication
• Apply the principle of least privilege by reducing the number of users with high-level administrative access
• Consider placing ColdFusion servers behind a reverse proxy with additional access control policies

# Example: Restrict ColdFusion admin access to specific IPs using iptables
# Allow admin access only from trusted management subnet
iptables -A INPUT -p tcp --dport 8500 -s 10.10.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8500 -j DROP

# Enable enhanced file access logging in ColdFusion Administrator
# Navigate to: Server Settings > Logging Settings
# Enable "Log all file operations" and set appropriate log rotation