CVE-2024-48645 in Command Block IDE
Summary
by MITRE • 10/21/2024
In Minecraft mod "Command Block IDE" up to and including version 0.4.9, a missing authorization (CWE-862) allows any user to modify "function" files used by the game when installed on a dedicated server.
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Analysis
by VulDB Data Team • 06/15/2025
The vulnerability identified as CVE-2024-48645 affects the Command Block IDE mod for Minecraft, specifically versions 0.4.9 and earlier. This represents a critical authorization flaw that undermines the security model of dedicated Minecraft servers where the mod is installed. The issue stems from insufficient access controls that permit unauthorized modification of function files, which are integral components used by the game's command block system to execute automated sequences. These function files serve as the backbone for server administrators to define complex gameplay mechanics, automated systems, and custom server behaviors. The absence of proper authentication checks means that any individual with access to the server can manipulate these critical files, potentially compromising the entire server environment and its intended functionality.
The technical nature of this vulnerability aligns with CWE-862, which specifically addresses missing authorization controls in software systems. This flaw operates at the application level where the mod fails to implement proper permission validation before allowing file modification operations. The vulnerability exists because the mod lacks a mechanism to verify user credentials or roles before granting write access to function files. In a typical Minecraft server environment, function files are stored in the server's data directory and are executed by command blocks during gameplay. When unauthorized users can modify these files, they gain the ability to inject malicious commands, alter game mechanics, or disrupt normal server operations. The impact is particularly severe in multiplayer environments where multiple users have access to the server, as the vulnerability creates an attack surface that can be exploited by both malicious actors and accidental operators.
The operational consequences of this vulnerability extend beyond simple unauthorized access, creating significant risks for server administrators and players alike. Server operators who rely on function files for automated systems, economy management, or custom game rules face potential compromise of their entire server configuration. An attacker could modify function files to redirect commands, create exploit chains, or establish persistent access points within the server environment. This vulnerability directly impacts the integrity and availability of server operations, potentially leading to complete server takeover or data corruption. The attack surface is further expanded because function files are often used in conjunction with other server components, creating cascading effects that can propagate through the entire server infrastructure. The lack of authorization checks means that even users with minimal privileges can perform operations that should be restricted to server administrators or trusted operators, fundamentally undermining the security model of the server environment.
Mitigation strategies for CVE-2024-48645 require immediate action from server administrators to prevent exploitation. The most effective immediate solution involves updating to a patched version of the Command Block IDE mod where proper authorization controls have been implemented. Until such updates are available, administrators should restrict access to the server's file system and implement additional security measures such as file integrity monitoring, restricted user permissions, and network-level access controls. The vulnerability demonstrates the importance of implementing proper access control mechanisms as outlined in the NIST Cybersecurity Framework and aligns with ATT&CK technique T1078 for valid accounts and T1566 for social engineering, as unauthorized access can occur through various vectors. Server administrators should also consider implementing logging mechanisms to detect unauthorized modifications to function files and establish baseline configurations that can be quickly restored in case of compromise. The incident highlights the need for robust input validation and access control implementation in all server-side applications, particularly those that handle configuration files or automated execution scripts, as these components often become primary targets for attackers seeking persistent access to server environments.