CVE-2017-17621 in Multivendor Penny Auction Clone Script
Summary
by MITRE
Multivendor Penny Auction Clone Script 1.0 has SQL Injection via the PATH_INFO to the /detail URI.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/14/2025
The vulnerability identified as CVE-2017-17621 represents a critical security flaw in the Multivendor Penny Auction Clone Script version 1.0, which operates as a web-based platform for online auction services. This particular vulnerability manifests as a SQL injection weakness that can be exploited through the PATH_INFO parameter when accessing the /detail URI endpoint. The affected system processes user input directly within database queries without proper sanitization or parameterization, creating an avenue for malicious actors to manipulate the underlying database structure and potentially extract sensitive information.
This SQL injection vulnerability stems from improper input validation and sanitization within the application's request handling mechanism. When the application receives a request through the PATH_INFO parameter to the /detail URI, it fails to adequately filter or escape user-supplied data before incorporating it into SQL query constructs. The vulnerability specifically targets the PATH_INFO component of the HTTP request, which is often used in RESTful API designs or URL rewriting scenarios. This flaw allows attackers to inject malicious SQL code that can be executed within the database context, potentially leading to unauthorized data access, modification, or deletion.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable attackers to escalate privileges within the application's database environment. An attacker could leverage this weakness to extract user credentials, personal information, auction details, and other sensitive data stored within the system's database. The vulnerability's presence in a penny auction platform particularly concerning, as it may expose financial transaction records, user payment information, and bidding histories that could be exploited for financial fraud or identity theft. The attack surface is further amplified by the fact that this vulnerability can be exploited through standard web browsing activities, making it accessible to attackers with minimal technical expertise.
Security professionals should consider this vulnerability in the context of CWE-89, which specifically addresses SQL injection flaws in software applications. The weakness aligns with the broader category of injection vulnerabilities that represent one of the most prevalent threats in web application security. From an ATT&CK framework perspective, this vulnerability maps to the T1190 technique for exploiting vulnerabilities in web applications, and could potentially lead to T1078 for legitimate credential access or T1046 for network service scanning. The vulnerability's exploitation requires minimal prerequisites, as it leverages standard HTTP request mechanisms that are commonly supported by web application frameworks and servers.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and parameterized query construction throughout the application's codebase. The most effective approach involves replacing direct string concatenation in SQL queries with prepared statements or parameterized queries that separate SQL command structure from data input. Additionally, implementing proper input sanitization routines, enforcing strict access controls, and conducting regular security code reviews can significantly reduce the risk of similar vulnerabilities. Organizations should also consider implementing web application firewalls to detect and block malicious SQL injection attempts, while establishing comprehensive monitoring systems to identify unauthorized database access patterns. Regular security assessments and penetration testing should be conducted to identify additional vulnerabilities within the application's architecture.