External risk intelligence

ELBA5 allows attackers to steal database passwords and run commands on your systems

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2018-25272

An external attacker can take advantage of default credentials in the ELBA5 database to gain administrative access. This allows them to run unauthorized commands, steal sensitive business data, and take complete control of the host server.

2Halo Surface Signal

Remote Code Execution

External exposure likelihood

Halo Surface Signal score for CVE-2018-25272

The vulnerability affects a database component that functions as an internal backend service. Standard deployment patterns place such databases behind internal network controls, making direct public internet exposure uncommon and typically a result of misconfiguration rather than intended design.

Horizon Alert

Summary of the vulnerability and why it matters

This issue in ELBA5 could allow an attacker to gain full control of your systems by accessing database credentials and executing commands. Because it enables remote code execution with high-level permissions, it poses a significant risk to data security and system integrity.

  • Affects systems directly reachable from the internet.
  • Allows attackers to execute commands as administrator.
  • Grants access to sensitive database credentials.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by remotely connecting to a vulnerable ELBA5 database. Default credentials allow them to decrypt the DBA password, gain SYSTEM-level permissions, and then execute arbitrary commands. This could include adding backdoor users for persistent access.

  • No authentication required.
  • Target the ELBA5 database service.
  • Default credentials are the entry point.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability allows for remote code execution with SYSTEM privileges by exploiting default database credentials, which is a highly desirable outcome for attackers. However, the context suggests the affected component, ELBA5, functions as an internal backend service. While a public exploit exists, its effectiveness is likely limited to environments where this internal service is inadvertently exposed to the internet.

  • Public exploit published.
  • Exploitation requires direct database access.
  • Affected service is typically internal.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize identifying and isolating systems running ELBA5 5.8.0 due to its critical remote code execution vulnerability. This allows attackers to gain database credentials and execute commands with SYSTEM privileges.

  • Block or restrict network access to vulnerable ELBA5 instances.
  • Monitor for unusual database queries or command executions.
  • Apply vendor patches when available and feasible.

Frequently asked questions

What is the nature of the ELBA5 5.8.0 vulnerability?

ELBA5 version 5.8.0 has a critical remote code execution vulnerability. This flaw allows attackers to steal database credentials and execute arbitrary commands with SYSTEM-level permissions, posing a significant risk to data security and system integrity.

How can an attacker exploit the ELBA5 vulnerability?

Attackers can exploit this by connecting to the vulnerable ELBA5 database, using default connector credentials to decrypt the DBA password, and then executing commands via the xp_cmdshell stored procedure. They may also add backdoor users to the BEDIENER table for persistent access.

What is the risk if ELBA5 5.8.0 is exposed to the internet?

If ELBA5 5.8.0 is directly reachable from the internet, attackers can exploit it to gain full control of systems by accessing database credentials and running commands as an administrator. This provides them with sensitive database information and the ability to execute powerful commands.

What is the current threat advisory for ELBA5 5.8.0, and what actions are recommended?

Halo classifies the ELBA5 vulnerability as 'Unlikely' to be exploited directly from the public internet due to its nature as an internal backend service. However, if ELBA5 5.8.0 is inadvertently exposed, recommended actions include restricting network access to vulnerable instances, monitoring for suspicious database activity, and applying vendor patches when available.

What are the practical steps to mitigate the ELBA5 5.8.0 vulnerability?

To address this critical vulnerability, prioritize identifying and isolating ELBA5 5.8.0 instances. Restrict network access to these instances, monitor for unusual database queries or command executions, and implement vendor-provided patches or updates as soon as they become available and feasible.

References