CVE-2008-2022 in MegaBBS
Summary
by MITRE
Mulatiple cross-site scripting (XSS) vulnerabilities in PD9 Software MegaBBS 2.2 allow remote attackers to inject arbitrary web script or HTML via the (1) toid parameter to send-private-message.asp and the (2) redirect parameter to admin/impersonate.asp. NOTE: vector 2 requires authentication.
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Analysis
by VulDB Data Team • 10/21/2024
The vulnerability identified as CVE-2008-2022 represents a critical security flaw in PD9 Software MegaBBS 2.2 that exposes the application to multiple cross-site scripting attacks. This vulnerability affects two distinct endpoints within the software, creating separate attack vectors that can be exploited by remote threat actors without requiring prior authentication for the first vector. The presence of these multiple XSS flaws significantly increases the attack surface and potential impact of the vulnerability within the affected system environment.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding practices within the MegaBBS application. The first vector targets the toid parameter in the send-private-message.asp script, where user-supplied input is directly incorporated into the web response without proper sanitization or encoding. Similarly, the second vulnerability exists in the redirect parameter of admin/impersonate.asp, which allows attackers to inject malicious scripts that execute in the context of authenticated users' browsers. Both flaws demonstrate poor secure coding practices that fail to properly escape or validate user-provided data before rendering it in web responses, making them susceptible to XSS exploitation.
The operational impact of these vulnerabilities is substantial, particularly given that the second vector requires authentication, which suggests that an attacker with valid credentials could leverage this flaw for more sophisticated attacks. The first vector, accessible without authentication, enables attackers to inject malicious scripts that could be executed by any user visiting affected pages. This could lead to session hijacking, credential theft, defacement of the bulletin board system, or redirection to malicious websites. The combination of these vulnerabilities creates a pathway for attackers to potentially escalate privileges or gain unauthorized access to sensitive user data and system resources.
Security professionals should prioritize immediate remediation of these vulnerabilities through proper input validation and output encoding mechanisms. The fix should involve implementing strict parameter validation for all user inputs, particularly those used in dynamic web content generation. According to CWE guidelines, these issues fall under CWE-79 which specifically addresses cross-site scripting vulnerabilities through inadequate input sanitization. The ATT&CK framework would categorize these as techniques related to command and control through web application exploitation, where attackers can establish persistent access through the exploitation of these vulnerabilities. Organizations should also implement web application firewalls, conduct regular security assessments, and ensure proper patch management procedures are in place to prevent similar vulnerabilities from emerging in other applications.