CVE-2009-2602 in R2 Newsletter Pro
Summary
by MITRE
R2 Newsletter Lite, Pro, and Stats stores sensitive information under the web root with insufficient access control, which allows remote attackers to download the database file via a direct request for admin.mdb.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2009-2602 affects R2 Newsletter Lite, Pro, and Stats software products that store database files with inadequate access controls within the web root directory. This configuration creates a critical security flaw that directly exposes sensitive administrative data to remote attackers without proper authentication or authorization mechanisms. The vulnerability stems from improper file placement and access control policies that fail to distinguish between public web content and protected administrative resources.
The technical implementation of this flaw involves the storage of the admin.mdb database file in a location accessible through standard web requests. When attackers make a direct HTTP request for admin.mdb, the web server serves the file without verifying user credentials or permissions, effectively bypassing all intended access controls. This represents a classic case of insufficient access control as defined by CWE-284, where improper permissions allow unauthorized access to protected resources. The vulnerability is particularly dangerous because it eliminates the need for complex exploitation techniques, making it easily exploitable by attackers with basic web browsing capabilities.
The operational impact of this vulnerability extends beyond simple data exposure, as the admin.mdb file likely contains sensitive administrative information including user credentials, configuration settings, and potentially personal data of newsletter subscribers. Attackers who successfully download this database file gain access to administrative controls, user accounts, and potentially sensitive organizational information that could be used for further attacks or data breaches. This vulnerability directly violates fundamental security principles of least privilege and proper resource isolation, as demonstrated by ATT&CK technique T1213.002 for data from information repositories.
Organizations using affected R2 Newsletter software face significant risks including unauthorized access to administrative functions, potential account takeovers, and exposure of sensitive user data. The vulnerability creates an attack surface that allows for easy reconnaissance and exploitation, enabling attackers to gain persistent access to systems that should remain protected. The lack of proper access controls means that any user with knowledge of the file path can retrieve the database, making this a particularly severe issue for web applications that handle sensitive information.
Recommended mitigations include immediate relocation of database files outside the web root directory, implementation of proper access control mechanisms, and configuration of web server permissions to prevent direct access to sensitive files. Organizations should also implement proper authentication and authorization controls, regularly audit file permissions, and consider implementing web application firewalls to detect and prevent direct file access attempts. The solution aligns with security best practices outlined in NIST SP 800-53 and ISO 27001 standards for access control and information security management, ensuring that sensitive data remains protected through proper isolation and access restrictions.