CVE-2011-5028 in Sentinel Log Manager
Summary
by MITRE
Directory traversal vulnerability in novelllogmanager/FileDownload in Novell Sentinel Log Manager 1.2.0.1_938 and earlier, as used in Novell Sentinel before 7.0.1.0, allows remote authenticated users to read arbitrary files via a .. (dot dot) in the filename parameter.
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Analysis
by VulDB Data Team • 11/20/2024
The CVE-2011-5028 vulnerability represents a critical directory traversal flaw affecting Novell Sentinel Log Manager versions 1.2.0.1_938 and earlier, as well as Novell Sentinel versions prior to 7.0.1.0. This vulnerability resides within the FileDownload component of the novelllogmanager module and exposes a fundamental security weakness in how the system processes filename parameters. The flaw allows authenticated remote attackers to access arbitrary files on the underlying file system by manipulating the filename parameter with directory traversal sequences such as .. (dot dot). This vulnerability directly maps to CWE-22, which defines improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The issue stems from inadequate input validation and sanitization within the file handling mechanism, creating an opportunity for attackers to bypass normal access controls and potentially gain unauthorized access to sensitive system files, configuration data, or user information stored on the server.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it can lead to complete system compromise when combined with other attack vectors. An authenticated attacker with access to the Sentinel Log Manager interface can exploit this flaw to read system configuration files, log files containing sensitive information, database files, or even executable components that may contain credentials or other exploitable data. The vulnerability's remote nature means attackers do not need physical access to the system, and the authenticated requirement reduces the attack surface but still provides a significant foothold for malicious actors who have gained legitimate access to the system. This weakness can be particularly dangerous in enterprise environments where log management systems often contain sensitive operational data, user credentials, or system configuration information that could be leveraged for further attacks or lateral movement within the network infrastructure.
Security professionals should consider this vulnerability in the context of the MITRE ATT&CK framework, specifically under the techniques related to privilege escalation and credential access. The ability to read arbitrary files through directory traversal can provide attackers with information needed for privilege escalation attacks, such as discovering system user accounts, password hashes, or service configuration details. Organizations should implement multiple layers of defense including input validation, proper file access controls, and regular security updates to address this vulnerability. The remediation process requires upgrading to Novell Sentinel 7.0.1.0 or later versions where the directory traversal issue has been patched. Additionally, system administrators should review and implement proper access controls, disable unnecessary file download functionality when possible, and conduct regular security assessments to identify similar vulnerabilities in other components of the log management infrastructure. The vulnerability demonstrates the importance of proper input validation and the principle of least privilege in preventing attackers from exploiting seemingly minor flaws in authentication and file handling mechanisms.