CVE-2008-0725 in FTP Server
Summary
by MITRE
Multiple heap-based buffer overflows in the (1) FTP service and (2) administration service in Titan FTP Server 6.0.5.549 allow remote attackers to cause a denial of service (daemon hang) and possibly execute arbitrary code via a long command. NOTE: the USER and PASS commands for the FTP service are covered by CVE-2008-0702.
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Analysis
by VulDB Data Team • 11/03/2017
The vulnerability identified as CVE-2008-0725 represents a critical heap-based buffer overflow issue affecting Titan FTP Server version 6.0.5.549. This security flaw manifests in two distinct service components of the FTP server software, specifically impacting both the File Transfer Protocol service and the administration service. The vulnerability stems from insufficient input validation mechanisms within these services, allowing malicious actors to exploit memory corruption vulnerabilities through carefully crafted long command sequences. The affected services operate at the core of the server's functionality, making this a particularly dangerous flaw that could compromise the entire server infrastructure.
The technical implementation of this vulnerability involves heap-based buffer overflows that occur when the FTP server processes incoming commands without adequate bounds checking. When remote attackers send specially crafted long commands to either the FTP service or administration service, the server's memory management routines fail to properly handle the excessive input data. This results in memory corruption that can manifest as daemon hangs or potentially lead to arbitrary code execution. The heap overflow conditions are particularly dangerous because they can be exploited to overwrite critical memory structures, potentially allowing attackers to redirect program execution flow or corrupt essential server processes. According to CWE standards, this vulnerability maps to CWE-121 heap-based buffer overflow, which is classified as a critical severity issue in software security.
The operational impact of CVE-2008-0725 extends beyond simple denial of service conditions to potentially enable complete system compromise. When the daemon hangs due to memory corruption, legitimate users experience service disruption that can affect business operations and data accessibility. However, the more severe implications arise from the potential for arbitrary code execution, which could allow attackers to gain unauthorized access to the server environment, escalate privileges, or establish persistent backdoors. The vulnerability affects both the FTP service and administration service, meaning that an attacker could potentially compromise either component to gain access to different levels of server functionality. This dual-service impact increases the attack surface and makes the vulnerability particularly attractive to threat actors seeking to establish persistent access to network infrastructure.
Mitigation strategies for CVE-2008-0725 should prioritize immediate patching of the Titan FTP Server software to version 6.0.5.550 or later, which contains the necessary security fixes. Network administrators should implement firewall rules and access controls to limit exposure of the affected services to trusted networks only, reducing the attack surface available to potential adversaries. Additionally, monitoring systems should be configured to detect unusual command patterns or extended command sequences that might indicate exploitation attempts. The ATT&CK framework categorizes this vulnerability under T1210 Exploitation of Remote Services, highlighting the importance of service hardening and regular security assessments. Organizations should also consider implementing intrusion detection systems that can identify and alert on buffer overflow exploitation patterns, as well as conducting regular vulnerability assessments to identify similar issues in other network services. Regular security updates and patch management processes should be enforced to prevent similar vulnerabilities from being exploited in the future.