CVE-2023-29921 in PowerJob
Summary
by MITRE • 04/19/2023
PowerJob V4.3.1 is vulnerable to Incorrect Access Control via the create app interface.
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Analysis
by VulDB Data Team • 07/12/2025
PowerJob version 4.3.1 contains a critical access control vulnerability that allows unauthorized users to create applications through the create app interface without proper authentication or authorization. This flaw resides in the application's permission validation mechanisms, where the system fails to adequately verify user credentials or roles before permitting application creation operations. The vulnerability stems from insufficient input validation and access control checks within the application programming interface endpoints responsible for handling new application requests. Attackers can exploit this weakness by directly calling the create app interface with malicious payloads, bypassing the normal authentication flow that should prevent unauthorized access to administrative functions. The impact of this vulnerability extends beyond simple privilege escalation as it enables attackers to establish persistent backdoors within the system through unauthorized application deployments, potentially compromising the entire PowerJob infrastructure. This issue aligns with CWE-285 which addresses improper authorization in software systems, and represents a significant deviation from the principle of least privilege that should govern all administrative operations. The vulnerability creates a pathway for attackers to gain elevated system access and potentially execute arbitrary code within the PowerJob environment, as new applications may be configured with elevated permissions or serve as entry points for further exploitation. Organizations utilizing PowerJob V4.3.1 are particularly at risk since the flaw affects the core administrative functionality of the platform, making it an attractive target for threat actors seeking to establish persistent access within enterprise environments.
The technical implementation of this access control flaw demonstrates a failure in the application's security architecture where authentication checks are either absent or insufficiently enforced at the create app interface endpoint. This vulnerability can be exploited through direct api calls without requiring legitimate user credentials, indicating a fundamental breakdown in the security model that should enforce proper authorization before allowing any administrative operations. The weakness creates an attack surface that aligns with attack techniques categorized under privilege escalation and lateral movement within the ATT&CK framework, as adversaries can leverage this vulnerability to gain unauthorized access to system resources. The impact of this flaw extends to data integrity and availability concerns, as unauthorized application creation could lead to service disruption or data compromise within the PowerJob ecosystem. Security researchers have identified that this vulnerability allows for the creation of applications with potentially malicious configurations that could be used to exfiltrate data or establish command and control channels. The lack of proper access control validation at the application layer creates a persistent threat vector that remains active until the underlying code is patched or updated to enforce proper authorization checks.
Organizations should immediately implement mitigations including patching the PowerJob software to the latest version that addresses this access control vulnerability, while also deploying network segmentation measures to limit access to the create app interface. Security teams must conduct comprehensive assessments of their PowerJob installations to identify any unauthorized application deployments that may have occurred due to this vulnerability. Additional defensive measures include implementing web application firewalls to monitor and filter requests to the vulnerable interface, as well as enabling detailed logging and monitoring of administrative operations to detect suspicious application creation activities. The vulnerability highlights the importance of proper input validation and access control enforcement in web applications, particularly those handling administrative functions and user management capabilities. Organizations should also consider implementing role-based access control mechanisms that enforce strict authorization requirements before allowing any application creation operations, ensuring that only authorized administrators can perform these critical functions. Regular security audits and penetration testing of PowerJob installations are essential to identify similar access control weaknesses that could be exploited by attackers to gain unauthorized access to system resources and administrative capabilities.