| 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. Mylfxmandyflores 22 01 20 Mandy Flores Working [ 360p ]In the landscape of modern search engine optimization (SEO), long-tail keywords that contain specific dates, alphanumeric strings, and creator names often represent highly localized, intent-driven traffic. The search phrase is a prime example of a hyper-specific user query. Let’s break down the components: When combined, this string operates primarily as a long-tail search query utilized by web scrapers, indexing bots, and users looking for a specific scene or catalog entry released on that exact date. The Evolution of Independent Digital Production mylfxmandyflores 22 01 20 mandy flores working After establishing herself, she continued to develop her career in various ways. Her professional career demonstrates her ability to adapt and grow, and she has the distinction of being a self-sufficient creator, implying a significant degree of autonomy and entrepreneurial drive in her work [6†L4-L5]. While she has since retired from performing, her legacy in the industry remains significant [6†L5-L6]. In the landscape of modern search engine optimization "Working" means showing up even on the days you don't want to. "Working" means showing up even on the days
Avoid downloading files/directories from untrusted FTP servers.
Disclosure Timeline
2008-06-15 - Vulnerability Discovered. |
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