CVE-2024-49340: IBM Watson Studio Local CSRF Vulnerability

CVE-2024-49340 Overview

CVE-2024-49340 is a Cross-Site Request Forgery (CSRF) vulnerability in IBM Watson Studio Local 1.2.3. The flaw allows an attacker to trigger unauthorized actions on behalf of an authenticated user that the application trusts. Exploitation requires the victim to interact with attacker-controlled content, such as a crafted link or web page, while authenticated to the Watson Studio Local interface. The weakness is tracked as [CWE-352] and stems from missing anti-CSRF protections on state-changing requests.

Critical Impact
Successful exploitation enables an attacker to perform privileged actions in IBM Watson Studio Local using a victim's authenticated session, with full impact to confidentiality, integrity, and availability.

Affected Products

IBM Watson Studio Local 1.2.3
Deployments using the affected web management interface
Environments where administrators access Watson Studio Local via browsers with concurrent web activity

Discovery Timeline

2024-10-16 - CVE-2024-49340 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-49340

Vulnerability Analysis

IBM Watson Studio Local 1.2.3 fails to validate the origin or intent of incoming state-changing HTTP requests. An attacker can craft a malicious web page that issues requests to the Watson Studio Local application. When a logged-in user visits the page, the browser automatically attaches the user's session credentials.

The server processes the forged requests as if they were initiated by the legitimate user. Because the attack vector is network-based and requires only user interaction, no prior authentication or elevated privileges are needed by the attacker. The vulnerability impacts data confidentiality, integrity, and availability when the victim holds administrative rights.

Root Cause

The root cause is the absence of effective CSRF countermeasures such as synchronizer tokens, double-submit cookies, or SameSite cookie attributes on sensitive endpoints. State-changing operations in the Watson Studio Local web interface accept requests based solely on session cookies. This design allows any cross-origin request carrying the session cookie to be honored by the backend.

Attack Vector

An attacker hosts a malicious page or sends a phishing link to an authenticated Watson Studio Local user. The page issues hidden HTML form submissions or scripted requests targeting Watson Studio Local URLs. Once executed in the victim's browser, the forged requests modify project data, alter configurations, or invoke administrative functions, depending on the victim's role. No exploit code or public proof of concept is currently published for CVE-2024-49340.

Detection Methods for CVE-2024-49340

Indicators of Compromise

Unexpected configuration or project changes in Watson Studio Local correlated with user browsing activity
HTTP request logs showing state-changing requests with external Referer or Origin headers
Authenticated POST, PUT, or DELETE requests immediately following user navigation from third-party domains

Detection Strategies

Inspect reverse proxy and application logs for state-changing requests lacking expected anti-CSRF tokens
Correlate user session activity with Referer and Origin header anomalies on sensitive Watson Studio Local endpoints
Alert on bursts of administrative actions originating from a single user session within short time windows

Monitoring Recommendations

Enable verbose HTTP access logging on the Watson Studio Local management interface and forward logs to a centralized SIEM
Monitor browser-based admin sessions for cross-origin request patterns targeting Watson Studio Local hostnames
Track changes to project assets, user roles, and runtime configurations and alert on out-of-band modifications

How to Mitigate CVE-2024-49340

Immediate Actions Required

Apply guidance and fixes provided in the IBM Support advisory for CVE-2024-49340
Restrict access to the Watson Studio Local interface to trusted networks and management VLANs
Require administrators to use dedicated browsers or browser profiles when accessing Watson Studio Local

Patch Information

IBM has published remediation guidance for IBM Watson Studio Local 1.2.3 on the IBM Support Page. Review the advisory and apply the vendor-recommended fix or upgrade path for affected deployments.

Workarounds

Enforce SameSite=Strict or SameSite=Lax attributes on session cookies at the reverse proxy layer where supported
Terminate idle administrator sessions quickly to reduce the window of exploitation
Educate users to log out of Watson Studio Local before browsing untrusted sites and to avoid clicking unsolicited links

bash

# Example reverse proxy configuration to harden session cookies and reject cross-origin POSTs
# NGINX snippet - adapt to your environment before deployment
proxy_cookie_path / "/; HTTPOnly; Secure; SameSite=Strict";

map $http_origin $allowed_origin {
    default 0;
    "https://watsonstudio.internal.example" 1;
}

location / {
    if ($request_method ~ ^(POST|PUT|DELETE)$) {
        if ($allowed_origin = 0) { return 403; }
    }
    proxy_pass http://watson_studio_local_backend;
}