CVE-2024-34519 in Server
Summary
by MITRE • 05/06/2024
Avantra Server 24.x before 24.0.7 and 24.1.x before 24.1.1 mishandles the security of dashboards, aka XAN-5367. If a user can create a dashboard with an auto-login user, data disclosure may occur. Access control can be bypassed when there is a shared dashboard, and its auto-login user has privileges that a dashboard visitor should not have.
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Analysis
by VulDB Data Team • 05/06/2024
The vulnerability identified as CVE-2024-34519 affects Avantra Server versions prior to 24.0.7 and 24.1.1, representing a critical access control flaw that undermines the security posture of dashboard sharing mechanisms. This issue stems from improper handling of dashboard security configurations where auto-login users can inadvertently grant unauthorized access to sensitive data. The vulnerability manifests when users create dashboards with auto-login functionality, creating a scenario where the security boundaries between dashboard creators and visitors become compromised. The flaw specifically impacts shared dashboards where the auto-login user possesses elevated privileges that should remain restricted to authorized personnel only.
The technical implementation of this vulnerability involves a breakdown in the privilege escalation controls within the Avantra Server's dashboard management system. When a dashboard is created with auto-login capabilities, the system fails to properly enforce access restrictions between the auto-login user context and the dashboard visitor context. This misconfiguration allows unauthorized data disclosure through the shared dashboard mechanism, where the auto-login user's elevated permissions can be leveraged to access data that should be restricted to specific user roles. The vulnerability essentially creates a pathway for privilege escalation through the dashboard sharing infrastructure, bypassing the intended access control mechanisms that should separate different user roles and their respective data access levels.
From an operational perspective, this vulnerability poses significant risks to organizations relying on Avantra Server for business intelligence and dashboard sharing. The impact extends beyond simple data exposure to encompass potential business intelligence theft, competitive disadvantage, and regulatory compliance violations. Attackers could exploit this vulnerability to access sensitive operational data, financial reports, customer information, or strategic business metrics that should remain confidential. The risk is particularly severe in environments where dashboards contain proprietary information or are used to monitor critical business processes. The vulnerability affects the fundamental security model of the platform, potentially allowing attackers to bypass authentication controls and access data through legitimate dashboard sharing mechanisms.
Organizations should implement immediate mitigations including updating to the patched versions 24.0.7 and 24.1.1 of Avantra Server to address the vulnerability. Additionally, administrators should review existing dashboard configurations to identify and remediate any dashboards that utilize auto-login functionality with elevated privileges. The security controls should be re-evaluated to ensure proper separation of privileges between auto-login users and dashboard visitors. Organizations should also consider implementing network segmentation and monitoring to detect potential exploitation attempts. This vulnerability aligns with CWE-284 Access Control Issues, specifically addressing improper access control mechanisms and privilege escalation through dashboard sharing features. The attack pattern follows ATT&CK techniques related to privilege escalation and credential access, where adversaries leverage system misconfigurations to bypass access controls and gain unauthorized data access through legitimate user accounts.