External risk intelligence

NoneCMS Remote Code Execution Vulnerability

CVE advisoryKnown Exploit

CVE-2018-20062

A vulnerability in NoneCms allows remote attackers to execute arbitrary code. This impacts system integrity and data confidentiality, posing a business risk of unauthorized access and service disruption. Updates are available.

4Halo Surface Signal

5none Nonecms

1.3.0

External exposure likelihood

Halo Surface Signal score for CVE-2018-20062

NoneCms is a Content Management System (CMS), a type of application typically deployed as an internet-facing web application. Since it serves public web content, it is commonly exposed to the internet by design.

Horizon Alert

Summary of the vulnerability and why it matters

The analyzed vulnerability affects the NoneCms content management system. The core issue allows attackers to execute arbitrary code on affected systems through a specific method of using the 'filter' parameter. This can lead to a significant business impact, potentially compromising system integrity and data confidentiality.

  • Vulnerable system: NoneCms
  • Core weakness: Remote code execution via 'filter' parameter
  • Main business impact: System compromise and data exposure

Attack Path

How an attacker could exploit the issue

This vulnerability allows an attacker to execute arbitrary code on an affected system. An attacker can leverage this by sending a specially crafted query to the application, which is then processed in a way that allows for remote code execution. This could lead to unauthorized access and modification of data or disruption of services.

  • External network exposure required.
  • Attacker sends crafted query.
  • Arbitrary code execution results.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability allows for remote code execution by attackers. It requires no special access and is relatively easy to exploit. The potential for significant damage to affected systems and data makes this a critical concern for organizations. The U.S. government has listed this CVE as actively exploited, indicating a high level of urgency.

  • Likely attacker skill level: Low
  • Required access or conditions: None
  • Business risk or urgency: High

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An organization faces a critical risk from a vulnerability in the NoneCms application, allowing attackers to execute arbitrary code remotely. This exploit can compromise system integrity and data confidentiality. The vendor has provided a fix for this issue.

  • Identify all instances of the affected application.
  • Isolate or block network access to the application.
  • Apply the vendor fix and validate the solution.

Frequently asked questions

What is NoneCms and how is it used?

NoneCms is a content management system (CMS) used for creating and managing websites, facilitating the development and maintenance of web content.

How does CVE-2018-20062 enable arbitrary code execution?

CVE-2018-20062 is a remote code execution vulnerability in NoneCms. It arises from how the software processes the 'filter' parameter, enabling attackers to run unauthorized PHP code.

What specific query triggers the NoneCms vulnerability?

An attacker can trigger the NoneCms vulnerability by sending a specially crafted query, such as 's=index/\think\Request/input&filter=phpinfo&data=1', to exploit the 'filter' parameter.

What is the significance of the Halo Surface Signal for CVE-2018-20062?

The Halo Surface Signal indicates a 'Likely' threat level for CVE-2018-20062 because NoneCms is a content management system, an application type commonly deployed as an internet-facing web application exposed to the internet by design.

What steps should be taken to address the NoneCms vulnerability?

Organizations should identify all NoneCms instances, isolate or block network access to the application, and apply the vendor-provided fix, followed by validation to ensure the solution is effective.

References

Cyber Threat Intelligence (CTI)

Sources: malpedia