| vuln.sg Vulnerability Research Advisory |
by Tan Chew Keong 
Summary
A vulnerability has been found within the FTP client in AceFTP. When exploited, this vulnerability allows an anonymous attacker to write files to arbitrary locations on a Windows user's system.
Tested Versions
Details
This advisory discloses a vulnerability within the FTP client in AceFTP. When exploited, this vulnerability allows an anonymous attacker to write files to arbitrary locations on a Windows user's system. The FTP client does not properly sanitise filenames containing directory traversal sequences (forward-slash) that are received from an FTP server in response to the LIST command. An example of such a response from a malicious FTP server is shown below. Response to LIST (forward-slash): -rw-r--r-- 1 ftp ftp 20 Mar 01 05:37 /../../../../../../../../../testfile.txt\r\n By tricking a user to download a directory from a malicious FTP server that contains files with fowward-slash directory traversal sequences in their filenames, it is possible for the attacker to write files to arbitrary locations on a user's system with privileges of that user. An attacker can potentially leverage this issue to write files into a user's Windows Startup folder and execute arbitrary code when the user logs on.
POC / Test Code
Please download the POC here and follow the instructions below. Mommysboy.24.03.06.sophia.locke.measuring.mama....As we navigate our lives, our relationships with our mothers can influence our choices, goals, and aspirations. By acknowledging the significant contributions of our mothers, we can cultivate a deeper appreciation for the love and support they provide. The act of measuring, as hinted at in the keyword, can be seen as a metaphor for evaluating the depth and quality of our relationships. In the context of family bonds, measuring love and support can be a complex and subjective endeavor. How do we quantify the love and care that we give and receive from our family members? MommysBoy.24.03.06.Sophia.Locke.Measuring.Mama.... The keyword "MommysBoy.24.03.06.Sophia.Locke.Measuring.Mama" serves as a reminder of the complex and multifaceted nature of family relationships. By exploring the themes and emotions evoked by this phrase, we can gain a deeper understanding of the significance of family bonds, the mother-child relationship, and the power of love and support. As we navigate our lives, our relationships with As we reflect on our own relationships and experiences, we can cultivate a greater sense of gratitude, empathy, and appreciation for the people who shape our lives. By prioritizing meaningful connections and nurturing our family bonds, we can build stronger, more resilient relationships that bring joy, comfort, and fulfillment to our lives. In the context of family bonds, measuring love Mothers play a pivotal role in shaping our experiences, values, and worldviews. Through their love, care, and guidance, mothers can inspire us to grow, learn, and thrive. The term "Mama" is often used as a term of endearment, conveying a sense of warmth, comfort, and nurturing.
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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