CVE-2025-45609 in kob
Summary
by MITRE • 05/05/2025
Incorrect access control in the doFilter function of kob latest v1.0.0-SNAPSHOT allows attackers to access sensitive information via a crafted payload.
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Analysis
by VulDB Data Team • 10/10/2025
The vulnerability identified as CVE-2025-45609 represents a critical access control flaw within the doFilter function of the kob software version 1.0.0-SNAPSHOT. This issue stems from inadequate validation mechanisms that fail to properly authenticate and authorize user requests before granting access to protected resources. The vulnerability manifests when attackers craft specific payloads that exploit the flawed filter implementation to bypass intended security restrictions and gain unauthorized access to sensitive information. The affected component operates as a middleware filter that should theoretically enforce access controls but instead permits malicious requests to proceed without proper verification.
The technical implementation of this vulnerability aligns with CWE-285, which describes improper authorization within filter mechanisms that allow unauthorized access to protected resources. The doFilter function serves as a critical security checkpoint in the application's request processing pipeline, yet it fails to maintain proper access control boundaries. Attackers can leverage this weakness by constructing malicious payloads that manipulate the filter's decision-making process, effectively circumventing authentication requirements and gaining access to data that should be restricted to authorized users only. The vulnerability demonstrates a fundamental flaw in the security architecture where the filter function does not adequately validate the requester's credentials or permissions before allowing data access.
From an operational perspective, this vulnerability presents significant risk to organizations utilizing the affected kob software version. The impact extends beyond simple information disclosure to potentially enable further exploitation through privilege escalation or lateral movement within the system. Attackers could use this access to gather sensitive data such as user credentials, system configurations, or business-critical information that could be leveraged for additional attacks. The vulnerability's presence in a snapshot version suggests that it may not have undergone comprehensive security testing, highlighting the importance of proper security validation before deployment in production environments. The attack vector is particularly concerning as it requires minimal specialized knowledge to exploit, making it attractive to threat actors across different skill levels.
Security professionals should implement immediate mitigations including updating to the latest stable release of the kob software that contains proper access control implementations. The filter function must be reviewed and enhanced to include robust authentication checks and proper authorization validation before any request is processed. Organizations should also consider implementing additional monitoring and logging around filter function calls to detect potential exploitation attempts. The vulnerability demonstrates the critical importance of proper access control implementation in middleware components and aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation. Network segmentation and least-privilege principles should be enforced to limit the potential impact if exploitation occurs. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other filter implementations and middleware components throughout the application stack.