External risk intelligence

University Information System can be fully controlled by an attacker

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2023-6190

A critical flaw in İzmir Katip Çelebi University's Information Management System lets attackers read or change any file on the server, potentially exposing sensitive data or disrupting operations.

4Halo Surface Signal

Path Traversal

Ikcu University Information Management System

before 30.11.2023

External exposure likelihood

Halo Surface Signal score for CVE-2023-6190

The İzmir Katip Çelebi University Information Management System (ÜBYS) is an administrative and academic portal. In normal deployment patterns across various universities, these systems are commonly hosted as internet-facing web applications to provide students, faculty, and staff with remote access to university services.

Horizon Alert

Summary of the vulnerability and why it matters

A path traversal vulnerability in the University Information Management System could allow an attacker to access and modify sensitive files on the server. This is concerning because it can lead to unauthorized access to confidential data and potential disruption of critical university operations.

  • Attackers can read and write files.
  • Data integrity and confidentiality are at risk.
  • Systems reachable from the internet may be affected.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this path traversal flaw to read sensitive files from the server or overwrite critical system files. This could allow them to gain elevated privileges or disrupt the application's functionality entirely. The vulnerability is in the İzmir Katip Çelebi University Information Management System, before version 30.11.2023.

  • No authentication needed.
  • Target the web application interface.
  • Read or write server files.

Live Threat

Current exploitation, exposure, and threat context

The described path traversal vulnerability in the İzmir Katip Çelebi University Information Management System could allow an unauthenticated attacker to access sensitive files on the server. While there are no immediate public indicators of widespread exploitation, the critical nature of the vulnerability and the potential for unauthorized data access make it an attractive target for opportunistic attackers. Given the system's likely internet-facing nature, a crafted request could lead to significant compromise.

  • Exploitation status unknown.
  • No public exploit available.
  • Recency signal is the vulnerability's publication date.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize isolating or taking offline any instances of the İzmir Katip Çelebi University Information Management System released before November 30, 2023, due to the critical path traversal vulnerability. If immediate offline action is not feasible, implement strict network segmentation and enhanced monitoring for any unusual file access patterns or unexpected system behaviors originating from these systems.

  • Block all external access.
  • Monitor for unauthorized file access.
  • Update to version 30.11.2023 or later.

Frequently asked questions

What is the İzmir Katip Çelebi University Information Management System, and what is its function?

The İzmir Katip Çelebi University Information Management System (ÜBYS) is a software platform used by universities for administrative and academic purposes. It facilitates the management of student, faculty, and university operations, typically accessible via a web interface.

What specific weakness does CVE-2023-6190 identify, and what is its class?

CVE-2023-6190 details an Improper Limitation of a Pathname to a Restricted Directory, a type of vulnerability known as Path Traversal (CWE-22). This flaw enables attackers to manipulate file paths to access or modify files beyond their intended directories.

How could an attacker exploit the path traversal vulnerability in the University Information Management System?

An attacker could leverage this path traversal vulnerability to read sensitive files from the server or overwrite critical system files. This exploitation could potentially grant them elevated privileges or entirely disrupt the application's intended functionality. The vulnerability affects versions of the İzmir Katip Çelebi University Information Management System released before November 30, 2023.

What is the relevance of CVE-2023-6190 according to Halo Surface Signal analysis?

Halo Surface Signal indicates a 'Likely' threat level for CVE-2023-6190. This assessment is based on the İzmir Katip Çelebi University Information Management System (ÜBYS) typically being an internet-facing web application, commonly deployed to provide remote access to university services for students, faculty, and staff.

What immediate actions should be taken to address the path traversal vulnerability?

It is crucial to prioritize isolating or taking offline any instances of the İzmir Katip Çelebi University Information Management System that were released before November 30, 2023. If immediate offline action is not possible, implement stringent network segmentation and enhance monitoring for any unusual file access patterns or unexpected system behaviors originating from these systems. The recommended upgrade is to version 30.11.2023 or a later release.

References