CVE-2006-4377 in Eichhorn Portal
Summary
by MITRE
Multiple SQL injection vulnerabilities in Guder und Koch Netzwerktechnik Eichhorn Portal allow remote attackers to execute arbitrary SQL commands via unspecified vectors, possibly including the (1) profil_nr and (2) sprache parameters in the main portion of the portal, the (3) suchstring field in suchForm in the main portion of the portal, the (4) GaleryKey and (5) Breadcrumbs parameters in the gallerie module, and the (6) GGBNSaction parameter in the ggbns module.
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Analysis
by VulDB Data Team • 09/24/2017
The vulnerability identified as CVE-2006-4377 represents a critical SQL injection flaw within the Guder und Koch Netzwerktechnik Eichhorn Portal software, a web-based content management system that was widely deployed in enterprise environments during the mid-2000s. This vulnerability resides in the application's handling of user-supplied input parameters that are directly incorporated into SQL query construction without proper sanitization or parameterization. The affected software components include multiple modules within the portal's architecture, specifically targeting parameters in both the main portal functionality and specialized modules such as gallerie and ggbns. The vulnerability's classification under CWE-89 indicates a direct injection of SQL commands, which is one of the most severe categories of web application vulnerabilities according to the Common Weakness Enumeration standard. This flaw enables remote attackers to manipulate the underlying database infrastructure through carefully crafted input data that bypasses normal authentication and authorization mechanisms.
The technical exploitation of this vulnerability occurs when attackers manipulate specific parameters within the portal's HTTP requests to inject malicious SQL code into the database query execution pipeline. The six identified vulnerable parameters include profil_nr and sprache in the main portal functionality, which are likely used for user profile management and language selection respectively, suggesting that attackers could potentially access or modify user accounts and language configurations. The suchstring field in the suchForm component indicates that search functionality within the portal is also compromised, allowing attackers to execute arbitrary database queries through search operations. Additionally, the gallerie module parameters GaleryKey and Breadcrumbs, along with the ggbns module parameter GGBNSaction, demonstrate that the vulnerability extends across multiple functional areas of the application, indicating a systemic flaw in input validation and query construction practices. These parameters are typically used for gallery navigation, breadcrumb trail generation, and specific action handling respectively, making them attractive targets for attackers seeking to escalate privileges or extract sensitive data.
The operational impact of CVE-2006-4377 is substantial and multifaceted, as remote attackers could potentially gain unauthorized access to sensitive data stored within the portal's database. This includes user credentials, personal information, configuration settings, and potentially business-critical data that the portal manages. The vulnerability's remote exploitability means that attackers do not require physical access to the system or local network presence to leverage the flaw, making it particularly dangerous for enterprise deployments. Successful exploitation could lead to complete database compromise, allowing attackers to read, modify, or delete sensitive information while potentially establishing persistent access through backdoor creation or privilege escalation. The attack surface is broad due to the presence of vulnerable parameters across multiple modules, increasing the likelihood that an attacker could successfully exploit the vulnerability through various entry points. This vulnerability aligns with ATT&CK technique T1071.004, which describes the use of application layer protocols for command and control activities, as attackers could use the SQL injection to establish persistent access patterns within the compromised system.
Organizations affected by this vulnerability should immediately implement comprehensive mitigation strategies to address the identified SQL injection flaws. The primary remediation approach involves implementing proper input validation and parameterized queries throughout the application codebase, ensuring that all user-supplied data is properly sanitized before being incorporated into database operations. This includes implementing strict input filtering, output encoding, and using prepared statements or parameterized queries that separate SQL code from data. Additionally, the implementation of Web Application Firewalls (WAF) can provide an additional layer of protection by detecting and blocking malicious SQL injection attempts. Network segmentation and access control measures should be strengthened to limit the potential impact of successful exploitation attempts. Regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other applications. The vulnerability's age and the fact that it was reported in 2006 suggests that affected organizations should also consider upgrading to supported versions of the portal software or migrating to more modern, secure alternatives to prevent similar issues from occurring in the future. The remediation efforts should also include comprehensive security training for development teams to prevent similar injection vulnerabilities in future application development cycles, as this vulnerability demonstrates a fundamental flaw in the application's data handling practices that could have been prevented through proper secure coding methodologies.