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Defense Digests

Veeam Backup & Replication Encrypted Credentials Disclosure

Dataprise Defense Digest 550x550

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Dataprise Defense Digest

ID: D3-2023-0004-1

Severity: HIGH (7.5)

Published: March, 9th 2023


Veeam has disclosed a vulnerability within their Veeam® Backup & Replication™ component that could allow an unauthenticated user to request encrypted credentials that could lead to them gaining access to backup infrastructure hosts. This affects all Veeam Backup & Replication versions. Patches are available for V11 and V12 to mitigate this vulnerability.

Dataprise is aware of the critical nature of this vulnerability and has completed a review of all available analysis of these vulnerabilities and the potential impact to our clients. This has been a major exercise as the investigation requires that a specific order of actions is taken to achieve the response objectives. Right now, our teams are working to confirm whether the recommended mitigation steps can be applied without causing any customer-facing service interruptions. If your organization’s Veeam appliance is covered under a service agreement, we will send a follow-up communication with details on our mitigation efforts


Vulnerability CVE-2023-27532 in a Veeam® Backup & Replication™ component allows an unauthenticated user operating within the backup infrastructure network perimeter to obtain encrypted credentials stored in the configuration database. This may lead to an attacker gaining access to the backup infrastructure hosts.


The vulnerable process, Veeam.Backup.Service.exe (TCP 9401 by default), allows an unauthenticated user to request encrypted credentials.


This vulnerability is resolved in the following Veeam Backup & Replication build numbers:

NOTE: Dataprise does not yet support v12, upgrading to v12 will break your cloud backups.

If you use an all-in-one Veeam appliance with no remote backup infrastructure components, you can alternatively, block external connections to port TCP 9401 in the backup server firewall as a temporary remediation until the patch is installed.



  • Stephen Jones, VP, Cybersecurity
  • Steven New, Director, BCDR
  • Kelly Cullwell, Senior Manager, Service Transition

View all Dataprise Defense Digests here.

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