CVE-2007-3173 in Almnzm
Summary
by MITRE
Almnzm allows remote attackers to obtain sensitive information via an activateorder request to index.php with an invalid orderid parameter, probably related to [ and ] characters.
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Analysis
by VulDB Data Team • 10/24/2017
The vulnerability identified as CVE-2007-3173 resides within the Almnzm web application framework, specifically exposing a sensitive information disclosure flaw through improper input validation. This weakness manifests when the application processes activateorder requests directed to the index.php endpoint with malformed orderid parameters containing bracket characters. The vulnerability represents a classic example of improper input sanitization that can be exploited to extract confidential data from the system's memory or internal processing states.
This security flaw operates through a combination of parameter manipulation and insufficient validation mechanisms within the application's request handling process. When an attacker submits an activateorder request with an invalid orderid parameter containing square brackets, the application fails to properly sanitize or validate the input before processing. The presence of these specific characters triggers an unexpected behavior in the application's internal parsing logic, potentially causing the system to leak sensitive information from memory structures or internal data representations. The vulnerability is categorized under CWE-20 as improper input validation, specifically manifesting as a weakness in parameter handling and validation.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can potentially expose critical system internals including database connection details, session information, or internal application state data. Attackers leveraging this flaw can construct malicious requests that, when processed by the vulnerable application, cause the system to inadvertently reveal sensitive data through error messages, memory dumps, or internal processing artifacts. This type of vulnerability is particularly concerning as it requires minimal privileges to exploit and can provide attackers with valuable intelligence for subsequent attacks. The vulnerability aligns with ATT&CK technique T1213.001 for Data from Information Repositories and T1083 for File and Directory Discovery, as it enables unauthorized access to sensitive system information.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization measures throughout the application's request processing pipeline. Organizations should deploy proper parameter validation that explicitly rejects or sanitizes special characters including brackets before they reach the application's core processing logic. Input filtering mechanisms should be implemented at multiple layers including web application firewalls, application code validation, and database input sanitization. Additionally, proper error handling should be implemented to prevent sensitive information leakage through error messages, ensuring that all user inputs are properly escaped and validated before processing. Regular security code reviews and input validation testing should be conducted to prevent similar vulnerabilities from being introduced in future development cycles, aligning with security best practices outlined in NIST SP 800-53 and OWASP Top Ten categories related to input validation and sensitive data protection.