CVE-2022-22733 in ShardingSphere ElasticJob-UI
Summary
by MITRE • 01/20/2022
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache ShardingSphere ElasticJob-UI allows an attacker who has guest account to do privilege escalation. This issue affects Apache ShardingSphere ElasticJob-UI Apache ShardingSphere ElasticJob-UI 3.x version 3.0.0 and prior versions.
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Analysis
by VulDB Data Team • 01/26/2022
The vulnerability CVE-2022-22733 represents a critical exposure of sensitive information in Apache ShardingSphere ElasticJob-UI, a distributed task scheduling solution that enables users to manage and monitor scheduled jobs across distributed systems. This security flaw specifically affects versions 3.0.0 and prior of the ElasticJob-UI component, creating a significant risk for organizations relying on this distributed job orchestration platform. The vulnerability stems from insufficient access controls and privilege validation mechanisms within the user authentication and authorization framework of the application.
The technical flaw manifests as an improper privilege escalation vulnerability that allows authenticated but unprivileged users with guest accounts to gain elevated access privileges. This occurs due to inadequate input validation and authorization checks that fail to properly verify user permissions before granting access to sensitive administrative functions. The vulnerability falls under CWE-284, which specifically addresses improper access control, and demonstrates how weak privilege validation can create pathways for unauthorized privilege escalation. Attackers exploiting this vulnerability can leverage their guest account access to perform actions that should be restricted to administrators or privileged users.
The operational impact of this vulnerability is severe as it fundamentally undermines the security model of the ElasticJob-UI application. An attacker with minimal privileges can potentially access sensitive job configurations, view confidential data, modify job schedules, or even execute arbitrary code within the system. This represents a critical breakdown in the principle of least privilege and can lead to complete system compromise if the jobs managed by ElasticJob-UI contain sensitive operations or access to critical infrastructure components. The vulnerability enables attackers to escalate their privileges without requiring additional authentication credentials or exploiting additional system weaknesses.
Organizations should immediately implement mitigations including upgrading to Apache ShardingSphere ElasticJob-UI version 3.1.0 or later, which contains the necessary security patches to address this privilege escalation vulnerability. Network segmentation and access controls should be enforced to limit direct access to the ElasticJob-UI administrative interfaces, while monitoring should be implemented to detect unauthorized access attempts. Security teams should also review and validate existing user permissions, ensuring that guest accounts have minimal necessary privileges and that proper role-based access controls are enforced. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically T1078 which covers valid accounts and T1548 which covers abuse of access control mechanisms, highlighting the need for comprehensive security measures to prevent such unauthorized access patterns.