CVE-2025-41404

4.3 MEDIUM

📋 TL;DR

This CVE describes a forced browsing vulnerability in iroha Board that allows authenticated attackers to access non-public content by directly requesting URLs. It affects all users of iroha Board versions v0.10.12 and earlier who have implemented access controls that can be bypassed through direct URL requests.

💻 Affected Systems

Products:
  • iroha Board
Versions: v0.10.12 and earlier
Operating Systems: All platforms running iroha Board
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments with access-controlled content are vulnerable. The vulnerability requires attacker authentication but bypasses application-level authorization checks.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could access sensitive administrative interfaces, confidential documents, or user data that should be restricted, potentially leading to data breaches or privilege escalation.

🟠

Likely Case

Authenticated users accessing content they shouldn't have permission to view, such as other users' files or restricted administrative pages.

🟢

If Mitigated

Minimal impact if proper network segmentation, strong authentication, and additional access controls are implemented beyond the vulnerable application layer.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires valid user credentials but involves simple direct URL requests to bypass authorization checks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v0.10.13 or later

Vendor Advisory: https://irohaboard.irohasoft.jp/security/

Restart Required: Yes

Instructions:

1. Backup current installation and data
2. Download iroha Board v0.10.13 or later from official source
3. Follow vendor upgrade instructions
4. Restart the application service
5. Verify proper functionality

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block direct requests to known restricted paths

Additional Authentication Middleware

all

Implement additional authorization checks at the web server or reverse proxy level

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate iroha Board from sensitive networks
  • Add additional authorization layer (reverse proxy with auth) in front of iroha Board

🔍 How to Verify

Check if Vulnerable:

Check iroha Board version via admin interface or configuration files. If version is v0.10.12 or earlier, system is vulnerable.

Check Version:

Check iroha Board configuration files or admin dashboard for version information

Verify Fix Applied:

After patching, attempt to access restricted content via direct URL requests while authenticated as non-privileged user. Access should be denied.

📡 Detection & Monitoring

Log Indicators:

  • Multiple 200/302 responses to direct URL requests for restricted paths
  • Access patterns showing users accessing content outside their normal role patterns

Network Indicators:

  • HTTP requests to known restricted paths without preceding navigation
  • Direct API calls to administrative endpoints from non-admin users

SIEM Query:

source="iroha_board" AND (url_path CONTAINS "/admin/" OR url_path CONTAINS "/restricted/") AND user_role!="admin" AND response_code=200

🔗 References

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