CVE-2007-3051 in RevokeBB
Summary
by MITRE
SQL injection vulnerability in inc/class_users.php in RevokeSoft RevokeBB 1.0 RC4 and earlier allows remote attackers to execute arbitrary SQL commands via the revokebb_user cookie.
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Analysis
by VulDB Data Team • 09/20/2024
The CVE-2007-3051 vulnerability represents a critical sql injection flaw in the RevokeSoft RevokeBB 1.0 RC4 and earlier versions, specifically within the inc/class_users.php file. This vulnerability arises from inadequate input validation and sanitization of user-supplied data, particularly when processing the revokebb_user cookie parameter. The flaw enables remote attackers to inject malicious sql commands directly into the application's database layer, potentially compromising the entire backend infrastructure.
The technical exploitation of this vulnerability occurs through the manipulation of the revokebb_user cookie value which is then processed without proper sanitization or parameterization. When the application reads this cookie value in the class_users.php file, it directly incorporates the unsanitized input into sql query construction without appropriate escaping or prepared statement usage. This design flaw falls under the common weakness enumeration CWE-89 which specifically addresses sql injection vulnerabilities where untrusted data is concatenated into sql commands. The vulnerability exists at the application logic level where user input is not properly validated or escaped before being used in database operations.
From an operational perspective, this vulnerability presents a severe risk to the confidentiality, integrity, and availability of the affected system. Remote attackers can execute arbitrary sql commands, potentially leading to unauthorized data access, data modification, or complete database compromise. The impact extends beyond simple data theft as attackers could escalate privileges, create backdoors, or even gain shell access to the underlying server. The vulnerability affects the entire user management functionality of the RevokeBB application, potentially allowing attackers to manipulate user accounts, bypass authentication mechanisms, or extract sensitive information from the database.
The exploitation of this vulnerability aligns with several tactics described in the attack technique framework, particularly those involving credential access and privilege escalation. Attackers can leverage this weakness to gain unauthorized access to user accounts and potentially move laterally within the network infrastructure. The vulnerability's remote nature means that attackers do not require physical access to the system, making it particularly dangerous in networked environments where the application may be exposed to the internet. This type of vulnerability is categorized under the attack pattern known as sql injection within the ATT&CK framework, specifically targeting the execution of malicious code through database manipulation.
Mitigation strategies for CVE-2007-3051 must focus on immediate application patching and input validation improvements. The most effective solution involves implementing proper parameterized queries or prepared statements throughout the application codebase, particularly in the inc/class_users.php file where the vulnerability originates. Additionally, comprehensive input validation and sanitization should be enforced on all cookie values and user-supplied data before processing. Organizations should also implement proper access controls and monitoring to detect unauthorized access attempts. The recommended approach includes upgrading to RevokeBB versions that have addressed this vulnerability, implementing web application firewalls, and conducting regular security assessments to identify similar weaknesses in other application components. Network segmentation and least privilege access principles should also be enforced to limit potential damage from successful exploitation attempts.