CVE-2006-2258 in MaxxSchedule
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Logon.asp in MaxxSchedule 1.0 allows remote attackers to inject arbitrary web script or HTML via the Error parameter.
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Analysis
by VulDB Data Team • 07/26/2018
The vulnerability identified as CVE-2006-2258 represents a classic cross-site scripting flaw within the MaxxSchedule 1.0 web application's authentication mechanism. This issue specifically affects the Logon.asp page which handles user login processes and error reporting. The vulnerability arises from insufficient input validation and output sanitization of the Error parameter, creating an avenue for malicious actors to execute arbitrary web scripts within the context of authenticated user sessions. The flaw exists at the application layer where user-supplied data flows directly into web responses without proper encoding or validation measures, making it susceptible to injection attacks that can compromise user sessions and potentially escalate to more severe security breaches.
From a technical perspective, this vulnerability operates through the exploitation of improper input handling within the web application's error reporting functionality. When the Logon.asp page processes the Error parameter, it fails to sanitize or encode the input before rendering it within the HTML response. This creates an environment where attackers can inject malicious JavaScript code or HTML content that gets executed by the victim's browser when the error message is displayed. The vulnerability is classified as a reflected cross-site scripting issue since the malicious payload is reflected back to the user through the application's error handling mechanism rather than being stored in the application's database. This type of vulnerability directly maps to CWE-79 which defines the weakness of insufficient input validation leading to XSS attacks. The attack vector requires minimal privileges as the vulnerability exists in the public-facing authentication page where no authentication is required to exploit the flaw.
The operational impact of this vulnerability extends beyond simple script injection and can result in significant security consequences for organizations using MaxxSchedule 1.0. Attackers can leverage this vulnerability to steal session cookies, redirect users to malicious websites, deface the application interface, or perform actions on behalf of authenticated users. The potential for session hijacking is particularly concerning as it allows attackers to impersonate legitimate users and access restricted functionality within the application. Furthermore, the vulnerability can be exploited to deliver malware payloads or phishing content to unsuspecting users who encounter the malicious error messages. From an attacker's perspective, this vulnerability aligns with ATT&CK technique T1566.001 which involves phishing attacks through malicious web content. The low complexity and high impact nature of this vulnerability make it attractive to threat actors, particularly those targeting web applications with weak input validation controls.
Mitigation strategies for CVE-2006-2258 should focus on implementing proper input validation and output encoding mechanisms throughout the application's error handling processes. Organizations should immediately apply the vendor-supplied patches or upgrade to newer versions of MaxxSchedule that address this vulnerability. The remediation approach must include comprehensive sanitization of all user inputs, particularly parameters used in error messages and dynamic content generation. Implementing Content Security Policy headers can provide additional protection against script execution, while proper output encoding using appropriate HTML entity encoding functions should be enforced for all dynamic content. The solution must also include regular security testing and code reviews to identify similar vulnerabilities in other application components. Organizations should consider implementing web application firewalls to detect and block malicious payloads attempting to exploit this vulnerability, while establishing monitoring procedures to detect potential exploitation attempts in production environments. The fix should ensure that all parameters, including Error, are properly validated and sanitized before being rendered in web responses, thereby eliminating the XSS attack vector through proper input/output handling practices.