CVE-2008-1311 in pt360 Tool Suite PRO
Summary
by MITRE
The TFTP server in PacketTrap pt360 Tool Suite PRO 2.0.3901.0 and earlier allows remote attackers to cause a denial of service (daemon hang) by uploading a file named (1) | (pipe), (2) " (quotation mark), or (3) "<>" (less than, greater than); or (4) a file with a long name. NOTE: the issue for vector 4 might exist because of an incomplete fix for CVE-2008-1312.
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Analysis
by VulDB Data Team • 08/07/2019
The vulnerability described in CVE-2008-1311 represents a significant denial of service weakness within the TFTP server component of PacketTrap pt360 Tool Suite PRO version 2.0.3901.0 and earlier releases. This issue manifests through improper handling of specially crafted filenames during file upload operations, creating conditions that can cause the TFTP daemon to become unresponsive or hang indefinitely. The vulnerability specifically targets the server's file naming validation mechanisms, which fail to properly sanitize or reject certain character sequences that could disrupt normal operational flow.
The technical flaw stems from inadequate input validation within the TFTP server's filename processing logic. When attackers upload files with specific character combinations such as pipe symbols, quotation marks, or angle brackets, the server's internal parsing routines become confused and enter an unrecoverable state. Additionally, the vulnerability extends to files with excessively long names, suggesting that the server lacks proper bounds checking for filename length parameters. This weakness directly maps to CWE-20, which describes improper input validation, and CWE-400, which addresses unspecified resource exhaustion conditions. The issue demonstrates poor defensive programming practices where the server fails to implement robust error handling for malformed input sequences.
Operationally, this vulnerability poses a substantial risk to network infrastructure management systems that rely on PacketTrap's TFTP functionality. An attacker with remote access capabilities can easily trigger a daemon hang by simply uploading a file with one of the specified problematic names, effectively rendering the TFTP service unavailable to legitimate users. This denial of service condition can persist until the service is manually restarted or the system is rebooted, potentially disrupting network management operations and configuration updates. The impact extends beyond simple service disruption as it can affect critical network maintenance tasks that depend on reliable TFTP functionality for device firmware upgrades and configuration transfers.
The vulnerability's connection to CVE-2008-1312 indicates a pattern of incomplete remediation efforts, where previous fixes may have addressed some vectors but left others unpatched. This suggests that the development team's approach to addressing security concerns was insufficient, leaving the system vulnerable to similar attack patterns. Organizations using this software should consider the broader implications of such incomplete fixes, as they may indicate deeper architectural weaknesses in the application's security design. The ATT&CK framework's T1499 category of network denial of service provides relevant context for understanding how this vulnerability can be exploited in operational environments. Mitigation strategies should include immediate patching to the latest available version of PacketTrap pt360 Tool Suite, implementing network segmentation to limit access to TFTP services, and establishing monitoring procedures to detect unusual file upload patterns that might indicate exploitation attempts.