S4E

CVE-2004-1641 Scanner

CVE-2004-1641 Scanner - Heap-Based Buffer Overflow vulnerability in Titan FTP Server

Short Info


Level

Medium

Single Scan

Single Scan

Can be used by

Asset Owner

Estimated Time

10 seconds

Time Interval

19 days 20 hours

Scan only one

Domain, Subdomain, IPv4

Toolbox

-

Titan FTP Server is a robust and popular FTP server software widely used by organizations for secure file transfers. It's designed for both small enterprises and large corporations due to its high level of configurability and support. The software facilitates smooth and reliable file transfers across different platforms and networks, ensuring data integrity and security. Known for its strong encryption features, Titan FTP Server is preferred by companies that prioritize secure data exchanges. It also provides extensive administrative controls, making it suitable for managing complex user permissions and access levels. Titan FTP Server finds its place in various industries, including finance, healthcare, and technology sectors.

The heap-based buffer overflow vulnerability in Titan FTP Server occurs when long FTP commands like CWD, STAT, or LIST are processed. Due to improper validation, an excessively long command can overflow the heap memory. This vulnerability is triggered when a remote attacker sends commands beyond the allocated buffer size. Once the heap overflow is activated, the daemon experiences a crash, disrupting normal server operations. This vulnerability allows attackers to perform a Denial of Service (DoS), impacting the server's availability. Although it primarily causes crashes, it could potentially be exploited for more severe attacks.

The vulnerability resides in the improper handling of specific FTP command inputs by Titan FTP Server. Commands like CWD (change working directory), STAT (status), and LIST (list files) can be exploited by passing overly long arguments. The vulnerable endpoint fails to securely manage the memory buffer allocated for these commands. This causes an overflow in the heap memory, which is a crucial part of process management in the operating system. Attackers exploit this by manipulating the input data size, leading to potential destabilization of the FTP service. It underscores the need for stringent input validation in software handling network commands.

When exploited, the heap-based buffer overflow vulnerability can lead to significant disruptions in service availability. The most immediate effect is the crashing of the Titan FTP server, rendering it non-functional until a restart is performed. In more severe scenarios, continuous targeted attacks could lead to frequent service interruptions, negatively impacting business operations. This vulnerability also opens the door for more extensive exploits, potentially allowing attackers to execute arbitrary code if combined with other vulnerabilities. Moreover, it poses a risk of unauthorized access or data manipulation if leveraged correctly.

REFERENCES

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