CVE-2008-6195 in LANDesk Management Suite
Summary
by MITRE
Directory traversal vulnerability in the PXE TFTP Service (PXEMTFTP.exe) in LANDesk Management Suite (LDMS) 8.80.1.1 and earlier allows remote attackers to read arbitrary files via a subdirectory name followed by ".." sequences, a different vulnerability than CVE-2008-1643.
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Analysis
by VulDB Data Team • 12/30/2024
The CVE-2008-6195 vulnerability represents a critical directory traversal flaw within the PXE TFTP Service component of LANDesk Management Suite version 8.80.1.1 and earlier releases. This vulnerability specifically affects the PXEMTFTP.exe service which handles network boot operations through the Preboot Execution Environment. The flaw enables remote attackers to access files outside the intended directory structure by exploiting improper input validation mechanisms. Unlike CVE-2008-1643 which addressed different aspects of the same software, this vulnerability specifically targets the TFTP service's handling of directory paths containing ".." sequences that should normally be rejected or properly normalized.
The technical implementation of this vulnerability stems from inadequate path validation within the PXE TFTP service. When processing file requests, the service fails to properly sanitize directory traversal sequences such as "../" or "..\" that would typically be filtered out by standard security mechanisms. Attackers can construct malicious file paths that leverage these sequences to navigate upward through the directory structure, potentially accessing sensitive system files, configuration data, or other restricted resources. This type of vulnerability falls under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is a well-documented weakness in software security practices. The vulnerability's impact is amplified by the fact that TFTP services are often deployed in network infrastructure environments where they may have access to sensitive corporate data.
The operational impact of this vulnerability extends beyond simple file disclosure, as it provides attackers with potential access to critical system information that could be leveraged for further exploitation. In enterprise environments utilizing LANDesk Management Suite, this vulnerability could allow unauthorized access to system configuration files, user data, or other sensitive information stored on the affected servers. The remote nature of the attack means that threat actors do not require physical access or local network privileges to exploit this weakness. This vulnerability directly aligns with ATT&CK technique T1083 - File and Directory Discovery, as it enables attackers to enumerate and access files outside of intended boundaries. Organizations using this software may find their network infrastructure exposed to unauthorized file access, potentially leading to data breaches or system compromise.
Mitigation strategies for CVE-2008-6195 should focus on immediate patching of affected LANDesk Management Suite installations to version 8.80.2 or later, which contains the necessary fixes for this directory traversal vulnerability. Network segmentation and access controls should be implemented to restrict access to the affected TFTP service, limiting exposure to only trusted network segments. Additionally, organizations should implement proper input validation mechanisms at the network level to filter out suspicious path sequences before they reach the vulnerable service. Security monitoring should be enhanced to detect unusual file access patterns or attempts to traverse directory structures. The vulnerability highlights the importance of proper path validation and input sanitization in network services, particularly those handling file operations. Organizations should also conduct comprehensive audits of their network infrastructure to identify other potentially vulnerable services that may be susceptible to similar directory traversal attacks, ensuring that all components follow secure coding practices that prevent improper path resolution.