CVE-2019-15747 in Six
Summary
by MITRE
SITOS six Build v6.2.1 allows a user with the user role of Seminar Coordinator to escalate their permission to the Systemadministrator role due to insufficient checks on the server side.
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Analysis
by VulDB Data Team • 01/03/2024
This vulnerability exists within the SITOS six Build v6.2.1 system where a user assigned with the Seminar Coordinator role can escalate their privileges to Systemadministrator through inadequate server-side validation mechanisms. The flaw represents a critical authorization bypass vulnerability that undermines the principle of least privilege and role-based access control. The system fails to properly validate whether a user possesses the necessary permissions before allowing role modifications or access to administrative functions. This represents a classic case of insufficient authorization checks that directly violates security best practices and industry standards.
The technical implementation of this vulnerability stems from weak server-side validation routines that do not adequately verify user permissions before executing privilege escalation operations. Attackers with Seminar Coordinator access can manipulate system parameters or API calls to assume administrative privileges without proper authentication or authorization verification. This type of vulnerability typically falls under CWE-285 which addresses improper authorization in software systems. The vulnerability allows for unauthorized privilege elevation that can lead to complete system compromise, as administrative access provides unrestricted control over system configuration, user management, and data access.
The operational impact of this vulnerability is severe and multifaceted. A malicious insider or external attacker with Seminar Coordinator credentials can gain full administrative control over the SITOS six system, potentially leading to data breaches, system manipulation, and unauthorized access to sensitive information. The vulnerability undermines the entire security architecture of the platform by allowing role manipulation without proper validation checks. This type of privilege escalation directly maps to ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate system access. The compromised system could be used as a foothold for further lateral movement within the network infrastructure.
Mitigation strategies should focus on implementing robust server-side validation mechanisms that enforce strict authorization checks before any privilege escalation operations. Organizations should implement proper role-based access control enforcement, ensuring that each user action is validated against their assigned permissions. The system should enforce mandatory access controls and maintain detailed audit logs of all privilege escalation attempts. Additionally, regular security testing and code reviews should be conducted to identify similar authorization bypass vulnerabilities. Implementing multi-factor authentication and least privilege principles can further reduce the impact of such vulnerabilities. The fix should include comprehensive input validation and proper session management to prevent unauthorized privilege changes. Organizations should also consider implementing security monitoring solutions that can detect anomalous privilege escalation activities and alert security teams to potential exploitation attempts.