CVE-2009-0703 in Webboard
Summary
by MITRE
SQL injection vulnerability in bview.asp in ASPThai.Net Webboard 6.0 allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 11/21/2024
The vulnerability identified as CVE-2009-0703 represents a critical sql injection flaw within the ASPThai.Net Webboard 6.0 application specifically affecting the bview.asp component. This weakness resides in the improper handling of user input through the id parameter, which creates an exploitable pathway for malicious actors to manipulate database queries. The vulnerability falls under the category of injection flaws as classified by CWE-89, where untrusted data is directly incorporated into sql commands without adequate sanitization or parameterization. The affected web application processes user-supplied identifiers without proper validation, allowing attackers to craft malicious input that alters the intended database operation.
The technical exploitation of this vulnerability occurs when an attacker submits a crafted id parameter value that contains sql payload commands. The bview.asp script processes this input directly within sql query construction, enabling the execution of arbitrary sql commands on the underlying database server. This allows attackers to perform unauthorized operations such as data extraction, modification, or deletion, potentially leading to complete database compromise. The vulnerability demonstrates a classic lack of input validation and output encoding practices that are fundamental to secure application development. Attackers can leverage this weakness to bypass authentication mechanisms, access sensitive user data, or even escalate privileges within the database environment.
The operational impact of CVE-2009-0703 extends beyond simple data theft, as it provides attackers with persistent access to the web application's database backend. This vulnerability can result in comprehensive data breaches affecting user accounts, forum posts, and potentially system configuration information. The remote nature of the attack means that exploitation can occur from any location without requiring physical access to the system. Organizations running ASPThai.Net Webboard 6.0 are particularly vulnerable since this represents a widespread issue affecting multiple installations. The vulnerability also aligns with attack patterns documented in the mitre att&ck framework under the execution and credential access domains, where attackers can leverage injection techniques to gain deeper system access.
Mitigation strategies for this vulnerability require immediate implementation of parameterized queries and input validation mechanisms. The most effective approach involves replacing direct sql string concatenation with prepared statements or parameterized queries that separate sql code from user data. Organizations should implement proper input sanitization routines that filter or escape special sql characters and validate input against expected data formats. Additionally, applying the principle of least privilege to database accounts used by the web application can limit the damage from successful exploitation. Regular security auditing and code review processes should be implemented to identify similar injection vulnerabilities throughout the application codebase. The remediation process must include updating to patched versions of ASPThai.Net Webboard or implementing proper input validation layers that align with secure coding practices established by industry standards such as owasp top ten and the iso/iec 27001 information security framework.