CVE-2007-0695 in Free Lan Intra Internet Portal
Summary
by MITRE
Multiple SQL injection vulnerabilities in Free LAN In(tra|ter)net Portal (FLIP) before 1.0-RC3 allow remote attackers to execute arbitrary SQL commands via unspecified vectors. NOTE: some sources mention the escape_sqlData, implode_sql, and implode_sqlIn functions, but these are protection schemes, not the vulnerable functions.
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Analysis
by VulDB Data Team • 10/06/2017
The vulnerability identified as CVE-2007-0695 affects the Free LAN In(tra|ter)net Portal (FLIP) software version 1.0-RC2 and earlier, representing a critical security flaw that enables remote attackers to execute arbitrary SQL commands through multiple SQL injection vectors. This vulnerability falls under the CWE-89 category of SQL Injection, which is classified as a serious weakness in software applications that process untrusted data through SQL queries. The flaw exists in the application's handling of user input within database operations, creating a pathway for malicious actors to manipulate the underlying database system through carefully crafted inputs.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the FLIP application's database interaction mechanisms. Attackers can exploit this weakness by submitting malicious input through unspecified vectors that ultimately reach the database layer, bypassing normal security controls that should prevent such unauthorized access. The vulnerability specifically targets the application's SQL query construction process, where user-supplied data is directly incorporated into SQL statements without proper escaping or parameterization techniques. This allows attackers to inject additional SQL commands that are then executed by the database server with the privileges of the application's database user account.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with the capability to perform unauthorized database operations including data extraction, modification, or deletion. Remote attackers can leverage this vulnerability to gain access to sensitive information stored within the FLIP application's database, potentially compromising user credentials, network configurations, or other confidential data. The vulnerability also enables attackers to escalate their privileges within the database environment, potentially leading to full system compromise if the database user has elevated permissions. This type of vulnerability is particularly dangerous in network management and portal applications where database access often provides administrative capabilities.
The vulnerability is classified under the MITRE ATT&CK framework as part of the T1071.004 technique for Application Layer Protocol: Database Protocol, where attackers exploit weaknesses in database communication protocols to gain unauthorized access. Organizations using FLIP versions prior to 1.0-RC3 are particularly at risk since the vulnerability allows for complete database compromise without requiring authentication to the application itself. The attack surface is broad due to the unspecified vectors mentioned in the vulnerability description, indicating that multiple input points within the application could be exploited. Security professionals should note that while some sources reference functions like escape_sqlData, implode_sql, and implode_sqlIn as protection schemes, these are not the vulnerable functions themselves but rather defensive mechanisms that were either inadequate or bypassed.
Mitigation strategies for this vulnerability include immediate upgrade to FLIP version 1.0-RC3 or later, which contains the necessary patches to address the SQL injection flaws. Organizations should also implement proper input validation and sanitization measures, ensuring that all user inputs are properly escaped or parameterized before being incorporated into SQL queries. The implementation of prepared statements or parameterized queries should be mandatory for all database interactions within the application. Additionally, database access should be restricted through proper privilege management, ensuring that application database accounts have the minimum necessary permissions. Network segmentation and intrusion detection systems should be deployed to monitor for potential exploitation attempts, while regular security assessments should be conducted to identify similar vulnerabilities in other applications and systems.