CVE-2005-3411 in Forums 2000
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in post.asp in Snitz Forums 2000 3.4.05 allows remote attackers to inject arbitrary web script or HTML via the type parameter in a Topic method.
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Analysis
by VulDB Data Team • 09/24/2024
The vulnerability identified as CVE-2005-3411 represents a classic cross-site scripting flaw within the Snitz Forums 2000 version 3.4.05 web application. This issue resides in the post.asp script and specifically affects the handling of user input through the type parameter when utilizing the Topic method. The vulnerability stems from inadequate input validation and output encoding mechanisms that fail to properly sanitize data before it is processed and rendered back to users within the forum interface. Such weaknesses create an environment where malicious actors can inject arbitrary web scripts or HTML content that executes in the context of other users' browsers.
The technical nature of this vulnerability aligns with CWE-79, which categorizes cross-site scripting as a critical web application security flaw. The flaw operates by allowing attackers to manipulate the type parameter through HTTP requests to the vulnerable post.asp endpoint, enabling them to inject malicious payloads that persist within the forum's content. When other users view the affected forum topics, their browsers execute the injected scripts, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This type of vulnerability represents a fundamental breakdown in the principle of proper input sanitization and output encoding that should be implemented at every layer of web application security.
The operational impact of this vulnerability extends beyond simple data corruption or display issues. Attackers can leverage this weakness to establish persistent malicious presence within the forum environment, potentially compromising user sessions through cookie theft or executing malicious code that can harvest sensitive information from authenticated users. The vulnerability particularly affects forum administrators and regular users who may inadvertently click on malicious links or view compromised posts. Given that Snitz Forums 2000 was a widely deployed forum solution in the early 2000s, the potential scope of exploitation was significant across numerous websites and organizations that relied on this platform for community interaction and collaboration.
Mitigation strategies for CVE-2005-3411 should prioritize immediate patching of the vulnerable Snitz Forums 2000 version 3.4.05 installation through official vendor updates or security patches. Organizations should implement comprehensive input validation mechanisms that properly sanitize all user-supplied data before processing, particularly focusing on the type parameter handling within the Topic method. Output encoding practices must be enforced to ensure that any potentially malicious content is rendered harmless when displayed to users. Additionally, implementing proper content security policies and web application firewalls can provide additional layers of protection against similar vulnerabilities. The remediation approach should align with ATT&CK technique T1566, which addresses the exploitation of web application vulnerabilities, and should include regular security assessments to identify and address similar input validation weaknesses across the entire application stack.