CVE-2006-6927 in Rialto
Summary
by MITRE
Multiple SQL injection vulnerabilities in Rialto 1.6 allow remote attackers to execute arbitrary SQL commands via (1) the uname (username) and (2) pword (passwd) fields in (a) admin/default.asp; the (3) ID parameter to (b) listfull.asp or (c) printmain.asp; the (4) cat parameter to (d) listmain.asp, (e) searchoption.asp, or (f) searchmain.asp; the (5) Keyword parameter to (g) searchkey.asp; the (6) area parameter to searchmain.asp or searchoption.asp; the (7) searchin parameter to searchkey.asp; or the (8) cost1, (9) cost2, (10) acreage1, or (11) squarefeet1 parameters to searchoption.asp. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 10/04/2024
The CVE-2006-6927 vulnerability represents a critical SQL injection flaw in Rialto 1.6, a web-based real estate management system that was widely deployed in the mid-2000s. This vulnerability classifies under CWE-89 as a SQL injection weakness, where the application fails to properly sanitize user inputs before incorporating them into database queries. The flaw affects multiple entry points within the application's administrative and search functionalities, creating a comprehensive attack surface that enables remote attackers to execute arbitrary SQL commands without authentication. The vulnerability's impact is amplified by the fact that it affects core administrative components including admin/default.asp which handles user authentication, making it particularly dangerous as attackers could potentially escalate privileges or gain full administrative control over the system.
The technical exploitation of this vulnerability occurs through multiple vectors that bypass proper input validation mechanisms. Attackers can manipulate the uname and pword parameters in admin/default.asp to inject malicious SQL code during the authentication process, potentially allowing unauthorized access to administrative functions. The ID parameter in listfull.asp and printmain.asp, along with the cat parameter in listmain.asp, searchoption.asp, and searchmain.asp, all represent separate injection points where user-supplied data flows directly into database queries without proper sanitization. Additionally, the Keyword parameter in searchkey.asp, area parameter in searchmain.asp and searchoption.asp, searchin parameter in searchkey.asp, and cost1, cost2, acreage1, and squarefeet1 parameters in searchoption.asp all provide additional attack vectors that collectively create a multi-layered exploitation opportunity. These parameters typically represent search criteria and filtering options that users might provide, making the attack surface particularly broad and difficult to defend against through simple input validation alone.
The operational impact of CVE-2006-6927 extends far beyond simple data theft, as it enables complete database compromise and potential system takeover. Successful exploitation allows attackers to extract sensitive information including user credentials, real estate listings, customer data, and potentially system configuration details. The vulnerability's ability to affect both authentication mechanisms and search functionalities means that attackers could not only access restricted areas but also manipulate or delete data within the system. This type of vulnerability directly violates the principle of least privilege and can lead to complete system compromise, especially when combined with other exploitation techniques or when the application runs with elevated database permissions. The vulnerability's widespread nature across multiple ASP pages suggests that the application's input handling logic was fundamentally flawed rather than being an isolated issue.
Mitigation strategies for CVE-2006-6927 should focus on implementing proper input validation and parameterized queries to prevent SQL injection attacks. The most effective remediation involves replacing all dynamic SQL construction with parameterized queries or stored procedures that separate SQL code from user data. Organizations should also implement proper input sanitization techniques, including whitelisting of acceptable characters and lengths for all user-supplied parameters. The application should enforce strict access controls and implement proper error handling that does not reveal database structure information to users. Additionally, regular security audits and code reviews should be conducted to identify similar vulnerabilities in other parts of the application. From an ATT&CK perspective, this vulnerability maps to T1190 (Exploit Public-Facing Application) and T1071.004 (Application Layer Protocol: DNS) as attackers can leverage these vulnerabilities to establish persistent access to the system. The vulnerability also aligns with T1003 (OS Credential Dumping) and T1005 (Data from Local System) as attackers can extract database credentials and sensitive data through SQL injection. Given the age of this vulnerability and the specific version affected, upgrading to a patched version of Rialto or migrating to a more modern system would be the most appropriate long-term solution, as the application is likely to contain additional unpatched vulnerabilities.