CVE-2008-0771 in Real Estate Web
Summary
by MITRE
Multiple SQL injection vulnerabilities in default.asp in Site2Nite allow remote attackers to execute arbitrary SQL commands via the (1) txtUserName and (2) txtPassword parameters. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 11/05/2017
The vulnerability identified as CVE-2008-0771 represents a critical SQL injection flaw in the default.asp component of the Site2Nite web application. This vulnerability exposes the application to remote code execution attacks through improper input validation mechanisms that fail to sanitize user-supplied data before incorporating it into database queries. The specific parameters txtUserName and txtPassword serve as primary attack vectors, allowing malicious actors to manipulate the application's database interactions through crafted input sequences. This type of vulnerability falls under the common weakness enumeration CWE-89 which categorizes SQL injection as a fundamental flaw in application security architecture.
The technical implementation of this vulnerability stems from the application's failure to employ proper parameterized queries or input sanitization techniques when processing authentication credentials. When users submit login information through the txtUserName and txtPassword fields, the Site2Nite application directly concatenates these values into SQL command strings without adequate validation or escaping mechanisms. This design flaw enables attackers to inject malicious SQL code that can manipulate the underlying database structure, potentially leading to unauthorized data access, modification, or deletion. The vulnerability operates at the application layer where user input transitions into database operations, making it particularly dangerous as it can be exploited without requiring elevated privileges or specialized knowledge of the system architecture.
From an operational perspective, this vulnerability presents a severe risk to organizations utilizing Site2Nite for web-based services. Attackers can exploit these SQL injection points to bypass authentication mechanisms, gain access to sensitive user data, or even escalate privileges within the database environment. The remote nature of the attack means that threat actors do not require physical access to the system or local network connectivity to exploit the vulnerability. This weakness aligns with the attack pattern described in the MITRE ATT&CK framework under the technique of "SQL Injection" which targets application-level vulnerabilities to gain unauthorized access to database resources and extract confidential information. The impact extends beyond simple data theft as attackers could potentially modify database content, corrupt system integrity, or establish persistent backdoors within the application environment.
Mitigation strategies for this vulnerability must focus on implementing robust input validation and parameterized query execution throughout the application codebase. Organizations should immediately implement proper sanitization of all user inputs, particularly those used in database operations, and replace dynamic SQL construction with prepared statements or parameterized queries. The implementation of web application firewalls and intrusion detection systems can provide additional layers of protection against exploitation attempts. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities across the application stack. According to industry best practices and security standards, this type of vulnerability should be addressed through comprehensive application security testing including dynamic and static analysis tools to prevent similar issues in future development cycles. Additionally, implementing proper access controls and database privilege management can limit the potential damage from successful exploitation attempts, though the primary defense remains eliminating the root cause through secure coding practices.