External risk intelligence

Veeam Backup & Replication Credential Exposure Risk.

CVE advisoryKnown Exploit

CVE-2023-27532

A vulnerability in Veeam Backup & Replication allows unauthorized access to encrypted credentials. This could lead to attackers gaining access to backup infrastructure hosts, posing a risk to data integrity and business continuity.

2Halo Surface Signal

Missing Authentication

Veeam Backup \& Replication

before 11.0.1.126111.0.1.126112.0.0.1420

External exposure likelihood

Halo Surface Signal score for CVE-2023-27532

The vulnerability affects Veeam Backup & Replication, which is typically deployed within internal, restricted management networks to protect enterprise data. While some components like Cloud Connect may be exposed, the core product is designed for internal infrastructure administration and is not intended to be a public-facing internet service in standard deployments.

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability has been identified in Veeam Backup & Replication. This flaw could allow unauthorized access to encrypted credentials. Such access might lead to compromise of backup infrastructure hosts, impacting data integrity and availability.

  • Vulnerable Veeam Backup component
  • Flaw exposes encrypted credentials
  • Potential access to backup hosts

Attack Path

How an attacker could exploit the issue

This vulnerability allows an attacker to obtain encrypted credentials stored within the Veeam Backup & Replication configuration database. This access to credentials could enable an attacker to gain control of the backup infrastructure hosts. Organizations using the affected product are at risk of unauthorized access to their backup systems, potentially compromising data integrity and availability.

  • External network access required
  • Attacker obtains credentials
  • Access to backup infrastructure hosts

Live Threat

Current exploitation, exposure, and threat context

A vulnerability in Veeam Backup & Replication could allow unauthorized access to encrypted credentials within the configuration database. This could potentially lead to attackers gaining access to backup infrastructure hosts. The potential impact on business operations, data integrity, and operational continuity is significant.

  • Low skill attacker
  • Network access required
  • High business risk or urgency

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An organization with Veeam Backup & Replication can address this vulnerability by first identifying all systems where the software is installed. The vulnerability allows attackers to obtain encrypted credentials, potentially leading to unauthorized access to backup infrastructure hosts. This could expose sensitive backup data and disrupt critical recovery operations.

  • Find all Veeam Backup & Replication assets.
  • Reduce exposure or isolate risk.
  • Apply vendor fix and validate.
  • Monitor for related issues.

Frequently asked questions

What is Veeam Backup & Replication and what is its core function?

Veeam Backup & Replication is a software solution designed for backing up virtual, physical, and cloud-based data. It is crucial for ensuring that an organization's data can be restored after events like hardware failures, cyberattacks, or other data loss incidents, thereby supporting business continuity and disaster recovery.

How does CVE-2023-27532 enable credential exposure in Veeam Backup & Replication?

CVE-2023-27532, identified as CWE-306 (Improper Limitation of Error Condition To Allow Information Exposure), allows attackers to retrieve encrypted credentials stored in the Veeam Backup & Replication configuration database. This weakness could potentially permit unauthorized access to the backup infrastructure hosts.

What is the attack vector and scope of impact for CVE-2023-27532?

The vulnerability is exploitable remotely over a network (AV:N) with low complexity (AC:L) and without requiring user interaction (UI:N). The scope remains unchanged (S:U), but the successful exploitation leads to a high impact on confidentiality (C:H) as an attacker can obtain sensitive credentials.

What is the relevance of the Halo Surface Signal for CVE-2023-27532?

Halo Surface Signal scores CVE-2023-27532 as 'Unlikely' to be exploited externally. This is because Veeam Backup & Replication is typically situated within restricted internal networks for data protection, rather than being a public-facing internet service.

What practical steps should an organization take to address the Veeam Backup & Replication vulnerability?

Organizations should first identify all Veeam Backup & Replication installations. Then, reduce the exposure of these systems or isolate any identified risks. Applying vendor-provided fixes and validating their implementation is essential, followed by vigilant monitoring for any related security incidents.

References