External risk intelligence

Roundcube Webmail SQL Injection Vulnerability.

CVE advisoryKnown Exploit

CVE-2021-44026

Roundcube Webmail has a vulnerability in its search functionality. This flaw allows for unauthorized data access and could disrupt operations. Organizations using affected versions face business risk and potential data compromise.

5Halo Surface Signal

SQL Injection

Roundcube Webmail

before 1.3.171.4.0 to before 1.4.1233349.010.011.0

External exposure likelihood

Halo Surface Signal score for CVE-2021-44026

The vulnerability affects Roundcube, which is a widely deployed, public-facing webmail application. Webmail portals are designed to be internet-accessible to allow users to retrieve and manage email from external locations, placing this service directly at the network edge by default in most deployment scenarios.

Horizon Alert

Summary of the vulnerability and why it matters

The Roundcube Webmail application has a vulnerability in its search functionality. This flaw could allow unauthorized access to sensitive data and potentially disrupt business operations. The issue is related to how the application handles search parameters, which can be exploited to manipulate database queries.

  • Affects Roundcube Webmail.
  • Allows unauthorized data access.
  • Creates business risk and data compromise.

Attack Path

How an attacker could exploit the issue

The vulnerability impacts organizations using Roundcube Webmail. An attacker could exploit this by sending specially crafted search queries. This action could lead to unauthorized access or modification of data within the affected systems, posing a business risk.

  • Exposure condition: Publicly accessible Roundcube Webmail.
  • Attacker starting point: Network.
  • Trigger and result: SQL injection leading to data impact.

Live Threat

Current exploitation, exposure, and threat context

The identified vulnerability in Roundcube Webmail presents a significant threat due to its potential for unauthorized data access and manipulation. Attackers with moderate technical skill could exploit this weakness to compromise sensitive information. The impact could lead to substantial business risk if not addressed promptly.

  • Attackers with moderate skill.
  • No special access or conditions required.
  • High business risk and urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability presents a critical risk to organizations using affected Roundcube webmail versions. A successful exploit could allow attackers to execute arbitrary SQL commands, potentially leading to unauthorized access, modification, or deletion of sensitive data. The ability for unauthenticated users to exploit this vulnerability via network access highlights the urgency of addressing this issue.

  • Identify all Roundcube webmail assets.
  • Restrict network access to Roundcube.
  • Update Roundcube and verify remediation.

Frequently asked questions

What is Roundcube Webmail?

Roundcube Webmail is a web-based email client that allows users to access and manage their email through a web browser. It is commonly used by organizations to provide their users with an accessible interface for their email services.

What is CVE-2021-44026?

CVE-2021-44026 is a critical vulnerability affecting Roundcube Webmail. It is classified as a SQL injection weakness, where attackers can manipulate database queries by sending specially crafted search parameters.

How can an attacker trigger this Roundcube Webmail vulnerability?

An attacker can trigger this vulnerability by sending specific search or search_params to an affected Roundcube Webmail instance. It does not require any special access or conditions for an unauthenticated user to potentially exploit this flaw.

How relevant is CVE-2021-44026 to my organization?

This vulnerability is highly relevant if your organization uses Roundcube Webmail, especially if it is internet-facing. The Halo Surface Signal indicates it's very likely to be exposed externally, meaning it could be accessible from the internet.

What are the first steps to address this Roundcube Webmail vulnerability?

First, identify all instances of Roundcube Webmail within your environment. Then, consider restricting network access to these instances if possible. The most important step is to update Roundcube Webmail to a non-vulnerable version as recommended by the vendor.

References