CVE-2005-3147 in StoreBackup
Summary
by MITRE
StoreBackup before 1.19 creates the backup root with world-readable permissions, which allows local users to obtain sensitive information.
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Analysis
by VulDB Data Team • 07/09/2019
The vulnerability identified as CVE-2005-3147 affects StoreBackup software versions prior to 1.19, presenting a critical security flaw related to file system permissions and information disclosure. This issue stems from the software's improper handling of backup directory creation processes, where the root backup directory is established with world-readable permissions. The flaw represents a fundamental failure in privilege management and access control implementation within the backup utility.
The technical implementation of this vulnerability manifests through the software's default configuration and permission setting mechanisms. When StoreBackup creates its root backup directory, it fails to properly restrict file permissions, resulting in the directory being accessible to all local users on the system. This misconfiguration allows any user account to traverse the backup hierarchy and potentially access sensitive data that should remain restricted to authorized personnel only. The vulnerability directly violates standard security practices for file system access control and represents a clear violation of the principle of least privilege.
From an operational impact perspective, this vulnerability enables local users to obtain sensitive information that may include system configurations, user data, application files, or other confidential material stored within the backup directories. The implications extend beyond simple information disclosure, as attackers could potentially gather intelligence about system architecture, user activities, or application vulnerabilities that could be leveraged for further exploitation. This type of vulnerability aligns with CWE-732, which specifically addresses incorrect permissions for a resource, and represents a classic example of insufficient access control mechanisms in security software.
The attack vector for this vulnerability is straightforward and requires minimal privileges, as it exploits the inherent permissions model rather than requiring complex exploitation techniques. Local users can simply navigate to the backup directory structure and read files that should remain protected. This vulnerability demonstrates how seemingly simple permission configurations can create significant security gaps in backup systems, which are often considered trusted components within enterprise environments. The issue also relates to ATT&CK technique T1005, which covers data from local system, as attackers can directly access sensitive files through compromised local accounts.
Mitigation strategies for this vulnerability involve immediate patching of the StoreBackup software to version 1.19 or later, which addresses the improper permission handling. System administrators should also implement proper permission auditing to identify and correct similar issues in other backup systems and applications. Additionally, implementing regular security configuration reviews and access control assessments can help prevent similar vulnerabilities from occurring in other software components. Organizations should consider implementing automated permission monitoring tools and establishing security baseline configurations that enforce restrictive permissions for backup directories and sensitive system areas. The remediation process should include verification that backup directories are properly secured with restricted permissions and that no world-readable access exists for sensitive data storage areas.