CVE-2022-4322 in maku-boot
Summary
by MITRE • 12/07/2022
A vulnerability, which was classified as critical, was found in maku-boot up to 2.2.0. This affects the function doExecute of the file AbstractScheduleJob.java of the component Scheduled Task Handler. The manipulation leads to injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 446eb7294332efca2bfd791bc37281cedac0d0ff. It is recommended to apply a patch to fix this issue. The identifier VDB-215013 was assigned to this vulnerability.
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Analysis
by VulDB Data Team • 12/31/2022
This critical vulnerability exists in maku-boot version 2.2.0 and earlier, specifically within the Scheduled Task Handler component. The flaw resides in the AbstractScheduleJob.java file's doExecute function, which processes scheduled tasks in the application's background processing system. The vulnerability represents a code injection flaw that allows attackers to execute arbitrary code within the application's runtime environment. Security researchers have classified this as a critical risk due to its potential for remote exploitation and the broad impact it can have on system integrity and availability.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the scheduled task execution mechanism. When the doExecute method processes task parameters, it fails to properly validate or escape user-supplied input before incorporating it into system commands or execution contexts. This creates an environment where malicious actors can inject harmful code sequences that will be executed by the application's scheduler. The vulnerability is particularly dangerous because it operates at the system level where scheduled tasks are typically executed with elevated privileges, potentially allowing attackers to gain deeper system access.
Remote exploitation of this vulnerability is fully enabled through the application's network-facing interfaces that handle scheduled task submissions and management. Attackers can craft malicious payloads that target the vulnerable doExecute function, potentially leading to complete system compromise, data exfiltration, or service disruption. The disclosed exploit demonstrates that this vulnerability can be leveraged without requiring local system access, making it particularly dangerous for applications deployed in cloud environments or accessible over the internet. The vulnerability's impact extends beyond simple code execution to include potential privilege escalation and persistent backdoor establishment.
The recommended remediation involves applying the official patch identified by commit hash 446eb7294332efca2bfd791bc37281cedac0d0ff, which addresses the input validation issues in the AbstractScheduleJob.java file. Organizations should immediately implement this patch across all affected systems and conduct thorough security assessments to ensure complete remediation. Additionally, security teams should review and harden all scheduled task handlers within their applications, implementing proper input validation, output encoding, and privilege separation measures. This vulnerability aligns with CWE-94, which describes "Improper Control of Generation of Code" and relates to the broader category of code injection attacks that fall under the ATT&CK framework's technique T1059.007 for "Command and Scripting Interpreter: PowerShell" and similar execution techniques, emphasizing the importance of validating all external inputs and implementing robust access controls for scheduled task systems.
Organizations should also implement monitoring solutions to detect anomalous scheduled task execution patterns that might indicate exploitation attempts. The vulnerability's classification as critical underscores the need for immediate action, as the public availability of exploitation tools increases the likelihood of widespread compromise across unpatched systems. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other scheduled task processing components throughout the application architecture.