CVE-2018-12942 in SeedDMS
Summary
by MITRE
SQL injection vulnerability in the "Users management" functionality in SeedDMS (formerly LetoDMS and MyDMS) before 5.1.8 allows authenticated attackers to manipulate an SQL query within the application by sending additional SQL commands to the application server. An attacker can use this vulnerability to perform malicious tasks such as to extract, change, or delete sensitive information within the database supporting the application, and potentially run system commands on the underlying operating system.
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Analysis
by VulDB Data Team • 04/27/2023
The CVE-2018-12942 vulnerability represents a critical SQL injection flaw within the SeedDMS document management system that affects versions prior to 5.1.8. This vulnerability specifically targets the users management functionality, which serves as a core component for administrative operations within the application. The flaw arises from insufficient input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into SQL query constructs. The vulnerability is classified under CWE-89 which specifically addresses SQL injection weaknesses in software applications. This type of vulnerability is particularly dangerous because it allows authenticated attackers to exploit the application's database interface through carefully crafted input that gets directly embedded into SQL statements without proper sanitization.
The technical exploitation of this vulnerability requires an attacker to possess valid authentication credentials within the SeedDMS system, which significantly reduces the attack surface but does not eliminate the risk entirely. Once authenticated, the attacker can manipulate the SQL queries by injecting malicious SQL commands through the users management interface. The vulnerability enables attackers to perform a wide range of malicious activities including data extraction, modification, and deletion from the underlying database. The attack vector specifically targets the user management functionality where user input is directly concatenated into SQL queries without proper parameterization or input validation. This allows attackers to bypass normal database access controls and potentially escalate their privileges within the system.
The operational impact of this vulnerability extends beyond simple data compromise, as it can potentially enable full system compromise through command execution capabilities. Attackers can leverage the SQL injection to extract sensitive user information, including credentials, personal data, and administrative access details. The vulnerability also allows for data manipulation and deletion, potentially leading to complete system corruption or denial of service conditions. From an enterprise security perspective, this vulnerability represents a significant risk to organizations relying on SeedDMS for document management, as it can facilitate unauthorized access to sensitive corporate information and potentially provide a foothold for further lateral movement within the network. The vulnerability's classification under the ATT&CK framework would fall under T1071.004 for application layer protocol and T1005 for data from local system, indicating the exploitation path from application interface to data extraction.
Mitigation strategies for CVE-2018-12942 should prioritize immediate patching of affected systems to version 5.1.8 or later, which contains the necessary fixes for the SQL injection vulnerability. Organizations should implement proper input validation and parameterized queries throughout the application codebase to prevent similar issues from occurring in the future. Database access controls should be reviewed and strengthened, ensuring that applications use least privilege principles and that database accounts have minimal necessary permissions. Network segmentation and monitoring should be implemented to detect anomalous database access patterns that might indicate exploitation attempts. Additionally, regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other application components. The fix for this vulnerability typically involves implementing proper input sanitization and parameterized database queries to ensure that user-supplied data cannot be interpreted as SQL commands.