CVE-2025-1350: IBM Controller Information Disclosure Flaw

CVE-2025-1350 Overview

CVE-2025-1350 is an information disclosure vulnerability affecting IBM Controller versions 11.0.0 through 11.0.1 FP7 and 11.1.0 through 11.1.3 FP1. The flaw exists because the application returns detailed technical error messages to the browser under certain conditions. A remote, unauthenticated attacker can observe these messages and collect internal application details. Attackers can then use the disclosed information to plan follow-on attacks against the affected system. The weakness is categorized as [CWE-209] Generation of Error Message Containing Sensitive Information.

Critical Impact
Remote attackers can harvest server-side technical details from verbose error responses without authentication, enabling reconnaissance for subsequent attacks.

Affected Products

IBM Controller 11.0.0 through 11.0.1 FP7
IBM Controller 11.1.0 through 11.1.3 FP1
Web-facing components that render server error output to the browser

Discovery Timeline

2026-09-18 - CVE-2025-1350 published to NVD
2026-09-19 - Last updated in NVD database

Technical Details for CVE-2025-1350

Vulnerability Analysis

IBM Controller returns verbose technical error messages to end-user browsers when specific error conditions occur. These responses may include stack traces, framework details, internal file paths, component names, or database identifiers. The information is not required for legitimate users but is highly useful to an attacker performing reconnaissance.

Because the issue is exposed over the network without authentication or user interaction, an attacker can trigger malformed or unexpected requests and observe the resulting error output. The disclosed data narrows the attack surface investigation and can accelerate exploitation of other weaknesses in the environment.

Exploitation does not directly compromise integrity or availability, which aligns with the confidentiality-only impact reflected in the CVSS vector. The practical risk lies in chaining this information leak with other flaws.

Root Cause

The root cause is improper error handling ([CWE-209]). The application propagates raw exception details to HTTP responses instead of returning generic messages and logging technical details server-side. Debug-style output should not reach untrusted clients in production builds.

Attack Vector

An unauthenticated remote attacker sends crafted or malformed HTTP requests to the IBM Controller web interface. The server responds with detailed error content rendered in the browser. The attacker parses the response for framework versions, stack frames, class names, SQL fragments, or file system paths. See the IBM Support Page for vendor-published technical details.

No verified public exploit code is available for this issue.

Detection Methods for CVE-2025-1350

Indicators of Compromise

HTTP 5xx responses from IBM Controller endpoints containing stack traces, class names, or internal file paths.
Repeated malformed or fuzz-style requests to Controller URIs from a single source address.
Response bodies containing keywords such as Exception, at java., Caused by:, or database driver strings returned to external clients.

Detection Strategies

Inspect web server and application logs for error responses that include debug-level content sent to remote clients.
Add web application firewall rules that flag outbound responses containing exception traces or SQL fragments.
Correlate reconnaissance patterns such as parameter fuzzing followed by focused requests against the same host.

Monitoring Recommendations

Forward IBM Controller access and error logs to a centralized SIEM for anomaly review.
Alert on spikes in 4xx and 5xx status codes originating from unauthenticated sessions.
Track requests to Controller endpoints from external IP ranges that should not reach the application.

How to Mitigate CVE-2025-1350

Immediate Actions Required

Apply the fixed IBM Controller release documented on the IBM Support Page.
Restrict network exposure of IBM Controller to trusted management networks and authenticated users.
Review recent web logs for evidence of reconnaissance leveraging verbose error responses.

Patch Information

IBM has published remediation guidance for affected Controller versions in the vendor advisory. Administrators should upgrade beyond 11.0.1 FP7 and 11.1.3 FP1 per the fixed levels listed in the IBM Support Page.

Workarounds

Configure the application server to return generic error pages instead of detailed exception output.
Disable debug or development mode in production deployments of IBM Controller.
Place the Controller behind a reverse proxy or WAF that strips detailed error content from outbound responses.

bash

# Configuration example: return generic error pages at the reverse proxy layer
# NGINX example - suppress upstream error bodies and serve a static page
proxy_intercept_errors on;
error_page 500 502 503 504 /generic_error.html;
location = /generic_error.html {
    internal;
    root /var/www/errors;
}