CVE-2010-1371 in Classified Listings ASP
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in signup.asp in Pre Classified Listings ASP allows remote attackers to inject arbitrary web script or HTML via the address parameter.
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Analysis
by VulDB Data Team • 12/29/2017
The vulnerability identified as CVE-2010-1371 represents a classic cross-site scripting flaw within the Pre Classified Listings ASP application's signup.asp component. This issue resides in the handling of user input through the address parameter, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The vulnerability stems from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before processing or displaying it within the web application's interface.
This XSS vulnerability operates under CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a direct descendant of the well-known weakness in web application security. The flaw allows remote attackers to inject malicious scripts that can execute in the victim's browser session, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The address parameter serves as the attack vector because it likely accepts unfiltered user input that gets rendered back to users without proper sanitization or encoding.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to manipulate the application's behavior and compromise user sessions. When users view pages containing the maliciously injected content, their browsers execute the embedded scripts, potentially allowing attackers to steal cookies, modify page content, or redirect users to phishing sites. The vulnerability affects the entire user base that interacts with the classified listings platform, particularly those who view listings or participate in the signup process where the address field is processed.
Security professionals should implement comprehensive input validation and output encoding strategies to address this vulnerability. The primary mitigation involves sanitizing all user input through proper encoding techniques such as HTML entity encoding for output contexts. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution. The vulnerability aligns with ATT&CK technique T1059.001 which covers command and scripting interpreter, specifically targeting the execution of malicious scripts through web application interfaces. Organizations should also consider implementing web application firewalls and regular security testing to identify similar input validation weaknesses in their web applications.