CVE-2022-30076 in ERP
Summary
by MITRE • 04/16/2023
ENTAB ERP 1.0 allows attackers to discover users' full names via a brute force attack with a series of student usernames such as s10000 through s20000. There is no rate limiting.
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Analysis
by VulDB Data Team • 05/29/2026
The vulnerability identified as CVE-2022-30076 affects ENTAB ERP version 1.0 and represents a critical security flaw that enables unauthorized discovery of user identities through systematic enumeration techniques. This vulnerability specifically targets the authentication mechanism of the enterprise resource planning system, where attackers can exploit the lack of proper rate limiting controls to perform brute force attacks against student user accounts. The affected system allows for predictable username patterns such as s10000 through s20000, making it particularly susceptible to automated discovery attempts that can systematically uncover valid user accounts within the organization's database.
The technical implementation of this vulnerability stems from the absence of rate limiting mechanisms within the authentication service, which is classified under CWE-307 - Improper Restriction of Excessive Authentication Attempts. This weakness allows attackers to rapidly submit authentication requests without encountering any protective measures that would normally throttle or block repeated access attempts. The vulnerability operates through a straightforward enumeration process where the attacker submits a series of potential usernames to determine which ones correspond to valid accounts, effectively creating a user directory without proper authorization. This type of attack falls under the ATT&CK technique T1078 - Valid Accounts, specifically targeting credential access through account discovery mechanisms.
The operational impact of this vulnerability extends beyond simple user enumeration, as it provides attackers with comprehensive information about the organization's user base structure and potentially exposes sensitive organizational patterns. The discovery of full names associated with student accounts can facilitate more sophisticated social engineering attacks, insider threat exploitation, or targeted phishing campaigns. Organizations utilizing ENTAB ERP 1.0 face significant risk of unauthorized access and data exposure, as the vulnerability enables attackers to build detailed profiles of legitimate users without requiring any prior knowledge of valid credentials. This information can be leveraged to conduct more advanced attacks such as credential stuffing against other systems or to create highly targeted malicious campaigns.
The mitigation strategy for CVE-2022-30076 requires immediate implementation of robust rate limiting controls at the authentication service level, ensuring that repeated authentication attempts are properly throttled and blocked after a predetermined number of failed attempts. Organizations should implement account lockout mechanisms and consider implementing multi-factor authentication to add additional layers of security. The solution must address the fundamental lack of access control measures that allow unlimited authentication attempts, which is a core design flaw in the system's security architecture. Security teams should also conduct comprehensive audits of all authentication mechanisms to identify similar vulnerabilities in other systems and ensure that proper monitoring and alerting is implemented to detect potential brute force attack patterns. Additionally, organizations should consider implementing adaptive authentication controls that can detect and respond to suspicious access patterns in real-time, preventing unauthorized enumeration attempts from succeeding.