Overview
CVE-2025-13765 describes a vulnerability in Devolutions Server that allows users without administrative privileges to access email service credentials. This exposure can lead to unauthorized access to sensitive email communications and potentially compromise other systems relying on those credentials.
This issue affects Devolutions Server versions prior to 2025.2.21 and 2025.3.9. It is crucial to update affected instances to a patched version to remediate this vulnerability.
Technical Details
The specific mechanism allowing unauthorized access is not explicitly detailed in the public advisory. However, the core issue revolves around insufficient access control mechanisms within Devolutions Server that permit non-administrative users to view or extract the email service configuration, which includes usernames and passwords. Further investigation of the source code or application behavior might be needed to determine the exact exploit vector prior to the patched versions.
CVSS Analysis
As of the publication of this article, the CVE entry lists the severity as N/A and does not provide a CVSS score. This may indicate that the CVSS score is still being calculated or that the vendor has chosen not to publish a score. However, given the nature of the vulnerability – exposure of sensitive credentials – it should be considered a high-severity issue until further information is available. Systems administrators should prioritize patching to prevent potential compromise.
Possible Impact
The exposure of email service credentials can have significant consequences:
- Unauthorized Email Access: Attackers can gain access to sensitive email communications, potentially including confidential information, internal correspondence, and personal data.
- Phishing Attacks: Compromised email accounts can be used to launch phishing campaigns against internal employees or external contacts, spreading malware or stealing further credentials.
- Data Breaches: Access to email may provide a gateway to other systems and data, leading to a wider data breach.
- Reputational Damage: A security breach can damage the reputation of the organization and erode customer trust.
Mitigation and Patch Steps
The primary mitigation step is to upgrade Devolutions Server to version 2025.2.21 or 2025.3.9 or later. Follow these steps:
- Backup: Before applying any updates, create a full backup of your Devolutions Server instance and database.
- Download: Download the latest version of Devolutions Server from the official Devolutions website.
- Installation: Follow the official Devolutions Server upgrade instructions.
- Verification: After the upgrade, verify that the vulnerability has been resolved by confirming that non-administrative users no longer have access to email service credentials.
