CVE-2011-1686 in Best Practical
Summary
by MITRE
Multiple SQL injection vulnerabilities in Best Practical Solutions RT 2.0.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7 allow remote authenticated users to execute arbitrary SQL commands via unspecified vectors, as demonstrated by reading data.
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Analysis
by VulDB Data Team • 11/05/2021
The vulnerability identified as CVE-2011-1686 represents a critical SQL injection flaw affecting Best Practical Solutions RT (Request Tracker) versions spanning multiple release branches from 2.0.0 through 3.6.10, 3.8.0 through 3.8.9, and 4.0.0rc through 4.0.0rc7. This vulnerability operates at the application layer and specifically targets the database interaction mechanisms within the RT system, creating a pathway for authenticated attackers to manipulate underlying SQL queries through crafted input parameters. The flaw resides in the improper handling of user-supplied data within database query construction processes, allowing malicious actors to inject arbitrary SQL commands that execute with the privileges of the database user account associated with the RT application. The vulnerability is particularly concerning because it requires only authenticated access, meaning that an attacker who has obtained valid credentials for the RT system can leverage this weakness to gain unauthorized access to sensitive data, potentially including user information, ticket details, and other confidential organizational data. The attack vector demonstrates the exploitation of inadequate input validation and parameter sanitization within the application's database interaction components, which is classified under CWE-89 as SQL Injection, a fundamental weakness in application security that has been consistently ranked among the top security risks by OWASP and other industry organizations. The operational impact extends beyond simple data reading capabilities, as successful exploitation could enable attackers to modify or delete database records, escalate privileges, or potentially gain further access to underlying systems through database-level attacks. This vulnerability aligns with ATT&CK technique T1071.005 for Application Layer Protocol: Web Protocols, and T1213.002 for Data from Information Repositories, highlighting the attack patterns that leverage application-level weaknesses to extract and manipulate organizational data. The affected versions of RT represent a broad range of releases that were widely deployed in enterprise environments, making this vulnerability particularly dangerous as it could impact numerous organizations simultaneously. The authentication requirement reduces the barrier to exploitation compared to fully unauthenticated attacks, yet still poses significant risk since many organizations maintain relatively permissive access controls for their ticketing systems, and credential compromise can occur through various means including phishing attacks, weak password policies, or insider threats.
The technical implementation of this vulnerability stems from the application's failure to properly sanitize or escape user input before incorporating it into SQL queries. When authenticated users submit data through various RT interfaces, the application processes this input without adequate validation, allowing malicious payloads to be interpreted as part of the SQL command structure rather than as literal data values. This flaw typically manifests when the application uses dynamic SQL query construction techniques without proper parameterization or input filtering mechanisms. The vulnerability's exploitation demonstrates the classic SQL injection pattern where attacker-controlled input modifies the intended query execution flow, potentially allowing access to data that should otherwise be restricted. The specific vectors that enable this attack are not fully detailed in the CVE description, but they likely involve parameters within RT's search, filtering, or reporting functions that directly influence database query construction. The impact is particularly severe because RT systems often contain sensitive organizational information including user credentials, ticket details, communication logs, and business-critical data. Organizations using these vulnerable versions face potential exposure to data breaches, regulatory compliance violations, and operational disruptions. The vulnerability's presence in multiple release branches indicates a persistent flaw in the application's codebase that was not adequately addressed during the development lifecycle, suggesting potential issues with code review processes and security testing procedures. Security practitioners should consider this vulnerability as part of the broader SQL injection attack surface and evaluate the effectiveness of existing network segmentation, database access controls, and monitoring mechanisms that might provide defense-in-depth against such attacks.
Mitigation strategies for CVE-2011-1686 should focus on immediate remediation through version updates to patched releases of RT, as well as implementing additional security controls to reduce the attack surface and limit potential impact. Organizations should prioritize upgrading to versions of RT that contain the specific patches addressing this vulnerability, which typically involve proper input sanitization and parameterized query construction. In addition to patch management, organizations should implement comprehensive input validation at multiple layers including application-level filtering, database-level access controls, and network-based intrusion detection systems that can identify suspicious SQL patterns. The implementation of web application firewalls and database activity monitoring solutions can provide additional protection against exploitation attempts. Access control measures should be strengthened to ensure that only authorized personnel have access to RT systems, with regular review of user permissions and implementation of least privilege principles. Network segmentation strategies should isolate RT systems from other critical infrastructure, and database connection pooling should be configured with appropriate privilege levels to minimize the potential damage from successful exploitation. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the application's codebase, with particular attention to areas involving dynamic query construction and user input handling. Organizations should also implement proper logging and monitoring of database activities to detect unauthorized access attempts or suspicious query patterns that may indicate exploitation attempts, ensuring that incident response procedures are in place to address potential breaches. The vulnerability serves as a reminder of the importance of maintaining current security practices, including regular vulnerability assessments, code security reviews, and adherence to secure coding standards that prevent injection vulnerabilities from being introduced into applications during development.