CVE-2025-25478

6.5 MEDIUM

📋 TL;DR

This vulnerability in Syspass 3.2.x allows attackers to access the web application's source code by exploiting improper filename handling in the account file upload feature. This can expose sensitive information including database credentials. Organizations running vulnerable Syspass versions are affected.

💻 Affected Systems

Products:
  • Syspass
Versions: 3.2.x
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems with account file upload functionality enabled.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full database compromise leading to credential theft, data exfiltration, and potential lateral movement within the network.

🟠

Likely Case

Database password disclosure enabling unauthorized database access and potential data manipulation.

🟢

If Mitigated

Limited information disclosure with no direct system compromise if proper network segmentation and database access controls are in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access to the file upload feature.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Unknown

Restart Required: No

Instructions:

Check Syspass vendor channels for security updates. Upgrade to a patched version when available.

🔧 Temporary Workarounds

Disable file upload functionality

all

Temporarily disable the vulnerable account file upload feature

Modify Syspass configuration to disable file uploads

Implement filename validation

all

Add server-side validation to reject filenames containing special characters

Implement regex filtering for uploaded filenames

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate Syspass from critical systems
  • Rotate all database credentials immediately and monitor for unauthorized access

🔍 How to Verify

Check if Vulnerable:

Check if running Syspass 3.2.x and test file upload with special characters in filename

Check Version:

Check Syspass web interface or configuration files for version information

Verify Fix Applied:

Test file upload functionality with special characters to ensure source code is not exposed

📡 Detection & Monitoring

Log Indicators:

  • Unusual file upload attempts with special characters in filenames
  • Multiple failed upload attempts

Network Indicators:

  • Unexpected database connection attempts from Syspass server

SIEM Query:

source="syspass" AND (event="file_upload" AND filename MATCHES "[^a-zA-Z0-9._-]")

🔗 References

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