CVE-2020-11591 in CIPAce
Summary
by MITRE
An issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. An unauthenticated attacker can make an API request and obtain the full application path along with the customer name.
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Analysis
by VulDB Data Team • 05/17/2024
The vulnerability identified as CVE-2020-11591 resides within CIPPlanner CIPAce version 9.1 build 2019092801, representing a critical information disclosure flaw that fundamentally undermines the security posture of the affected system. This vulnerability manifests through an API endpoint that fails to enforce proper authentication mechanisms, allowing any remote attacker to execute unauthorized requests and extract sensitive system information without requiring valid credentials or access privileges.
The technical implementation of this vulnerability stems from inadequate input validation and access control enforcement within the application's API framework. When an unauthenticated request is made to specific API endpoints, the system responds with detailed path information and customer identification data, effectively leaking system internals and organizational details that should remain confidential. This type of information disclosure represents a direct violation of security principles and creates a foundation for further exploitation activities.
From an operational impact perspective, this vulnerability enables attackers to gather intelligence that significantly reduces the attack surface and facilitates more sophisticated assault vectors. The leaked application path information provides attackers with insights into the system architecture, directory structures, and potentially sensitive file locations that could be targeted in subsequent attacks. The inclusion of customer names in the response data creates additional risks for privacy and data protection compliance, particularly in regulated environments where such information must remain protected.
The vulnerability aligns with CWE-200, which addresses "Information Exposure," and demonstrates characteristics consistent with CWE-352, "Cross-Site Request Forgery," though the specific implementation involves unauthorized access rather than CSRF. From an ATT&CK framework perspective, this vulnerability maps to T1083, "File and Directory Discovery," and T1069, "Permission Groups Discovery," as it provides attackers with information about system paths and organizational structure. The lack of authentication enforcement directly violates the principle of least privilege and demonstrates a critical failure in the application's security architecture.
Mitigation strategies should focus on implementing robust authentication mechanisms across all API endpoints, ensuring that proper access controls are enforced before any sensitive information is returned. Organizations should immediately patch the affected software version and conduct comprehensive security reviews of all API interfaces to identify similar authentication bypass vulnerabilities. Additionally, implementing proper logging and monitoring of API access patterns can help detect and respond to unauthorized access attempts. Network segmentation and firewall rules should be configured to restrict access to administrative API endpoints to trusted networks only, while regular security assessments should verify that no other similar information disclosure vulnerabilities exist within the application ecosystem.