CVE-2025-2277

7.5 HIGH

📋 TL;DR

This vulnerability in Devolutions Server exposes SSH passwords in the web-based authentication component due to missing password masking. An authenticated user could inadvertently leak their SSH password through the interface. This affects all users of Devolutions Server 2024.3.13 and earlier.

💻 Affected Systems

Products:
  • Devolutions Server
Versions: 2024.3.13 and earlier
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All installations with web-based SSH authentication enabled are affected.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker with access to the web interface could capture SSH passwords, potentially gaining unauthorized access to SSH-protected systems managed through Devolutions Server.

🟠

Likely Case

Accidental password exposure by legitimate users during authentication, potentially leading to credential compromise if observed by malicious actors.

🟢

If Mitigated

Limited impact if proper access controls restrict web interface access and users follow security best practices.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires access to the web interface and observation of password entry.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2024.3.14 or later

Vendor Advisory: https://devolutions.net/security/advisories/DEVO-2025-0004/

Restart Required: No

Instructions:

1. Download Devolutions Server 2024.3.14 or later from official sources. 2. Run the installer to upgrade. 3. Verify the update completed successfully.

🔧 Temporary Workarounds

Disable web-based SSH authentication

all

Temporarily disable the vulnerable component until patching is possible.

🧯 If You Can't Patch

  • Restrict access to the Devolutions Server web interface to trusted users only
  • Implement network segmentation to isolate Devolutions Server from critical systems

🔍 How to Verify

Check if Vulnerable:

Check Devolutions Server version in web interface or configuration files. Versions 2024.3.13 and earlier are vulnerable.

Check Version:

Check web interface dashboard or review installation logs for version information.

Verify Fix Applied:

Verify version is 2024.3.14 or later and test SSH authentication to confirm password masking is working.

📡 Detection & Monitoring

Log Indicators:

  • Failed authentication attempts with exposed credentials
  • Unusual access patterns to SSH authentication endpoints

Network Indicators:

  • Unusual traffic to Devolutions Server SSH authentication endpoints

SIEM Query:

source="devolutions-server" AND (event="authentication" OR event="ssh") AND credential_exposure=true

🔗 References

📤 Share & Export