External risk intelligence

Rejetto HTTP File Server Arbitrary Program Execution

CVE advisoryKnown Exploit

CVE-2014-6287

A flaw in Rejetto HTTP File Server allows remote attackers to execute arbitrary programs, posing a risk of system compromise and data breaches. Affected organizations should identify and isolate exposed instances.

5Halo Surface Signal

Code Injection

Rejetto Http File Server

2.3 to before 2.3c

External exposure likelihood

Halo Surface Signal score for CVE-2014-6287

Rejetto HTTP File Server is designed specifically as a web server application for sharing files over a network. In its intended use case, it acts as a public-facing or network-accessible web service, making it readily reachable via internet protocols for file retrieval.

Horizon Alert

Summary of the vulnerability and why it matters

The Rejetto HTTP File Server contains a flaw in its parsing library that could be exploited. This vulnerability allows remote attackers to execute arbitrary programs on affected systems. The potential impact could include unauthorized program execution, leading to system compromise and data breaches.

  • Vulnerable component: HTTP File Server parsing
  • Core weakness: Arbitrary program execution
  • Main business impact: System compromise and data breach

Attack Path

How an attacker could exploit the issue

Rejetto HTTP File Server, when exposed to the network, allows for unauthorized program execution. An attacker can leverage this by sending a specially crafted search request. This request triggers the server to execute arbitrary code, potentially leading to system compromise.

  • Network access is required.
  • Attacker sends a search request.
  • Arbitrary programs are executed.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability allows attackers to execute arbitrary programs by sending specially crafted search requests to an affected server. The exploit involves sending a search query containing a null byte sequence. Successful exploitation could lead to unauthorized command execution on the server, potentially compromising the entire system. This poses a significant risk to organizational data and operations.

  • Likely attacker skill level: Low
  • Required access or conditions: Network access
  • Business risk or urgency: Critical

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Rejetto HTTP File Server allows remote attackers to execute arbitrary programs. This could impact organizations by enabling unauthorized code execution on affected systems, potentially leading to data breaches or further compromise. The direct impact on business operations and data integrity is significant due to the severity and exploitability of this vulnerability.

  • Identify exposed Rejetto HTTP File Server instances.
  • Isolate or disable affected servers.
  • Apply vendor fixes and validate.

Frequently asked questions

What is Rejetto HTTP File Server?

Rejetto HTTP File Server, also known as HFS, is a web server application designed for sharing files over a network. It allows users to upload and download files through a web interface, often functioning as a public-facing or network-accessible service.

What is the weakness in Rejetto HTTP File Server (CVE-2014-6287)?

The vulnerability, CVE-2014-6287, resides in the server's parsing library and is classified under CWE-94, indicating a code injection weakness. This flaw allows remote attackers to execute arbitrary programs on the server.

How can an attacker exploit CVE-2014-6287 in Rejetto HTTP File Server?

Exploitation involves a remote attacker sending a specially crafted search request containing a null byte sequence (%00). This triggers the server to execute arbitrary code, potentially leading to system compromise.

What is the relevance of CVE-2014-6287 to network-accessible services?

As Rejetto HTTP File Server is a web server for file sharing, its network accessibility means it can be reached by attackers. This exposure heightens the risk of exploitation for unauthorized program execution on the server.

What are the practical steps to address the Rejetto HTTP File Server vulnerability?

To mitigate this vulnerability, organizations should identify all exposed Rejetto HTTP File Server instances, isolate or disable affected servers, and apply vendor-provided fixes. Validating these remediation steps is also crucial.

References