CVE-2007-0367 in Rumpus FTP Server
Summary
by MITRE
Rumpus 5.1 and earlier has weak permissions for certain files and directories under /usr/local/Rumpus, including the configuration file, which allows local users to have an unknown impact by creating, modifying, or deleting files.
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Analysis
by VulDB Data Team • 10/07/2017
The vulnerability identified as CVE-2007-0367 affects Rumpus 5.1 and earlier versions, representing a critical access control flaw within the application's file system permissions. This issue stems from inadequate permission settings for specific files and directories located under the /usr/local/Rumpus path, creating an exploitable condition that undermines the system's security posture. The affected configuration file and associated directories lack proper access controls, allowing unauthorized local users to manipulate critical system components through file creation, modification, or deletion operations.
This weakness constitutes a direct violation of the principle of least privilege, where system resources should only be accessible to authorized users with appropriate permissions. The vulnerability falls under the category of improper access control as classified by CWE-284, specifically targeting file system permissions and access controls. The impact of this flaw extends beyond simple unauthorized access, as local users can potentially disrupt the application's functionality, compromise data integrity, or even escalate their privileges within the system. The configuration file's exposure creates a potential attack vector for malicious actors to modify application settings, potentially leading to unauthorized system behavior or complete service compromise.
The operational impact of CVE-2007-0367 is significant for any system running vulnerable versions of Rumpus, as local users with minimal privileges can exploit this weakness to gain unauthorized access to system resources. This vulnerability aligns with ATT&CK technique T1068, which involves the exploitation of legitimate credentials and system access to escalate privileges or gain unauthorized access to resources. The affected system components include not only the configuration file but also other sensitive directories within the Rumpus installation path, creating multiple potential entry points for attackers. The consequences can range from data corruption and service disruption to complete system compromise, depending on how the vulnerable permissions are exploited.
Organizations should immediately implement mitigations including upgrading to Rumpus versions that address this permission issue, implementing proper file system permissions for the /usr/local/Rumpus directory and its contents, and conducting comprehensive access control reviews. The remediation process should involve setting appropriate ownership and permissions for all Rumpus-related files and directories, ensuring that only authorized system administrators can modify critical configuration components. Additionally, regular security audits should verify that no weak permissions exist for system directories, and system monitoring should be implemented to detect unauthorized file modifications. The vulnerability demonstrates the critical importance of maintaining proper access controls and highlights the necessity of regular security assessments to identify and remediate similar permission-related flaws that could provide attackers with unauthorized access to system resources.