External risk intelligence

Telerik Report Server Authentication Bypass Vulnerability.

CVE advisoryKnown Exploit

CVE-2024-4358

An authentication bypass vulnerability exists in Telerik Report Server. This flaw allows unauthenticated attackers to access restricted functionalities, posing a risk of unauthorized access and potential data compromise. Organizations should apply vendor mitigations to address this threat.

4Halo Surface Signal

Authentication Bypass

Telerik Report Server 2024

10.0.24.305 and earlier

External exposure likelihood

Halo Surface Signal score for CVE-2024-4358

Telerik Report Server is a centralized reporting application typically deployed as a web-based service. Such platforms are commonly exposed to the network to allow users to generate, view, and manage reports, making it a likely candidate for being an internet-facing or edge-reachable web application in many enterprise environments.

Horizon Alert

Summary of the vulnerability and why it matters

Telerik Report Server is vulnerable to an authentication bypass. This flaw permits an unauthenticated attacker to access restricted functionalities within the server. The potential impact includes unauthorized access to sensitive system features, which could disrupt operations or expose confidential information.

  • Vulnerable component: Telerik Report Server
  • Core weakness: Authentication bypass flaw
  • Main business impact: Unauthorized access to restricted functions

Attack Path

How an attacker could exploit the issue

The Telerik Report Server, when exposed to the network, presents an authentication bypass vulnerability. An unauthenticated attacker can exploit this to access restricted functionalities within the server. This bypass allows an attacker to gain unauthorized access to the system.

  • Network exposure is the initial condition.
  • Attacker gains access remotely.
  • Bypass authentication to control functionality.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in Telerik Report Server allows an unauthenticated attacker to bypass authentication and access restricted functionalities. The attacker could leverage this to gain unauthorized access to sensitive data or disrupt reporting services. Given the criticality, organizations should prioritize addressing this vulnerability.

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

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An authentication bypass vulnerability in Progress Telerik Report Server allows unauthenticated attackers to access restricted functionality. This presents a significant risk, as it could lead to unauthorized access and potential compromise of sensitive data and systems. Organizations using this software should take immediate steps to assess and mitigate this vulnerability to protect their environment.

  • Identify Telerik Report Server installations.
  • Restrict network access to the server.
  • Apply vendor updates and verify remediation.

Frequently asked questions

What is Telerik Report Server and its primary use?

Telerik Report Server is a software solution designed for creating, managing, and distributing reports. It serves as a central hub for generating reports that users within an organization can access, aiding in data visualization and business intelligence initiatives.

What type of weakness does CVE-2024-4358 represent in Telerik Report Server?

CVE-2024-4358 is classified as an authentication bypass vulnerability (CWE-290). This means an attacker can circumvent the standard login procedures to access functionalities that would normally require proper credentials.

How can an unauthenticated attacker exploit CVE-2024-4358?

An unauthenticated attacker can exploit this vulnerability by bypassing the authentication mechanisms of Telerik Report Server. This allows them to access restricted functionalities without needing valid login details, potentially leading to unauthorized control or information access.

Why is CVE-2024-4358 considered a critical external threat to Telerik Report Server?

The critical external nature of CVE-2024-4358 stems from its network attack vector and the ability for an unauthenticated attacker to achieve high impact through unauthorized access and data modification. Organizations using Telerik Report Server should heed the CISA advisory for this vulnerability.

What actions should be taken to address the Telerik Report Server authentication bypass vulnerability?

To mitigate CVE-2024-4358, organizations should first identify all instances of Telerik Report Server. It is recommended to restrict network access to the server where possible and promptly apply any updates or patches provided by the vendor, verifying that the remediation is effective.

References