CVE-2025-3564

4.3 MEDIUM

📋 TL;DR

This vulnerability allows unauthorized access to the Teacher String Handler component in huanfenz/code-projects StudentManager, potentially enabling attackers to manipulate teacher-related data or functions remotely. It affects users running StudentManager version 1.0 or earlier. The vulnerability stems from improper authorization controls.

💻 Affected Systems

Products:
  • huanfenz/code-projects StudentManager
Versions: up to 1.0
Operating Systems: Any
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the Teacher String Handler component specifically. All deployments of affected versions are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could modify teacher records, alter permissions, or disrupt student management functions, potentially compromising data integrity and availability.

🟠

Likely Case

Unauthorized users gain access to teacher-specific functions they shouldn't have, allowing data viewing or limited manipulation.

🟢

If Mitigated

With proper network segmentation and access controls, impact is limited to unauthorized data access within the application scope.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit details are publicly available in GitHub repositories. Attack requires some level of access but not necessarily authentication to the vulnerable component.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: None

Vendor Advisory: None

Restart Required: No

Instructions:

No official patch available. Vendor was contacted but did not respond. Consider migrating to alternative software or implementing workarounds.

🔧 Temporary Workarounds

Network Access Restriction

all

Restrict network access to StudentManager application to trusted IPs only

# Use firewall rules to restrict access
# Example: iptables -A INPUT -p tcp --dport [APP_PORT] -s [TRUSTED_IP] -j ACCEPT
# Example: iptables -A INPUT -p tcp --dport [APP_PORT] -j DROP

Application Layer Authorization

all

Implement additional authorization checks in the Teacher String Handler component

# Modify source code to add proper role-based access controls
# Add authentication verification before processing teacher string operations

🧯 If You Can't Patch

  • Isolate StudentManager on segmented network with strict access controls
  • Implement web application firewall (WAF) rules to detect and block unauthorized access patterns

🔍 How to Verify

Check if Vulnerable:

Check if running StudentManager version 1.0 or earlier. Review application logs for unauthorized access attempts to Teacher String Handler endpoints.

Check Version:

# Check package version or application metadata
# For typical installations: grep -i version /path/to/studentmanager/config/files

Verify Fix Applied:

Test authorization controls by attempting to access Teacher String Handler functions with unauthorized credentials. Verify proper access denial.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to teacher-related endpoints
  • Failed authorization logs for Teacher String Handler
  • Unexpected teacher data modifications

Network Indicators:

  • Unusual requests to /teacher/string or similar endpoints
  • Requests bypassing normal authentication flows

SIEM Query:

source="studentmanager.log" AND ("Teacher String" OR "unauthorized" OR "access denied") AND action="modify"

🔗 References

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