CVE-2022-0203 in crater-invoice
Summary
by MITRE • 01/26/2022
Improper Access Control in GitHub repository crater-invoice/crater prior to 6.0.2.
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Analysis
by VulDB Data Team • 01/29/2022
The vulnerability identified as CVE-2022-0203 represents a critical improper access control flaw within the crater-invoice/crater repository prior to version 6.0.2. This issue stems from inadequate authorization mechanisms that allow unauthorized users to access restricted functionality and data within the application. The flaw exists in the web application's permission system where proper validation checks are missing or incorrectly implemented, creating a pathway for privilege escalation and unauthorized data manipulation. Such vulnerabilities are particularly dangerous in invoice management systems where sensitive financial data and business operations are handled, as they can lead to complete system compromise and data breaches.
The technical implementation of this access control weakness manifests through insufficient input validation and lack of proper session management within the application's authentication flow. Attackers can exploit this vulnerability by manipulating request parameters or bypassing authentication checks to gain access to administrative functions, customer data, invoice records, and other sensitive information. The flaw likely occurs in the application's routing logic or API endpoints where proper user role verification is either absent or improperly enforced, allowing malicious actors to perform actions typically restricted to authorized administrators. This type of vulnerability falls under CWE-285, which specifically addresses improper authorization within software systems, making it a direct violation of fundamental security principles.
The operational impact of CVE-2022-0203 extends far beyond simple data exposure, potentially enabling complete system takeover and financial fraud. Organizations utilizing affected versions of the crater-invoice application face significant risks including unauthorized invoice creation or modification, customer data theft, financial loss, and regulatory compliance violations. The vulnerability can be exploited through various attack vectors including web application exploitation, session hijacking, or by leveraging other initial access points to escalate privileges within the system. This flaw directly maps to multiple tactics in the MITRE ATT&CK framework under privilege escalation and defense evasion techniques, as attackers can maintain persistent access and avoid detection mechanisms while exploiting the compromised authorization controls.
Mitigation strategies for CVE-2022-0203 require immediate implementation of proper access control measures including comprehensive input validation, robust session management, and strict role-based access controls. Organizations should upgrade to version 6.0.2 or later where the vulnerability has been patched, implement proper authentication and authorization checks at all application entry points, and conduct thorough security testing including penetration testing and code review processes. Additional protective measures include implementing web application firewalls, monitoring access logs for suspicious activities, and establishing proper network segmentation to limit the potential impact of successful exploitation attempts. Security teams should also perform regular vulnerability assessments and maintain updated threat intelligence to identify similar weaknesses in related systems and applications within their infrastructure.