Title: Pablo Software Solutions Baby FTP Server Directory Traversal Vulnerability
Severity: MODERATE
Description:
Baby FTP Server is a freely available, open source FTP Server for the Microsoft Windows platform. It is maintained by Pablo Software Solutions.
A problem with the server may make it possible to gain unauthorized access to system resources.
It has been reported that Baby FTP Server does not properly handle some types of requests. This may make it possible for a remote user to gain access to resources outside of the FTP root directory.
The problem is in the handling of directory traversal strings. By executing the Change Working Directory (CWD) command with one of several known directory traversal strings, it is possible to escape the confines of the FTP directories and gain access to system files. The following strings will aid an attacker in escaping from the FTP root directory:
CWD ...
CWD /...
CWD /......
CWD \...
CWD ...CWD .../
The attacker would have the privileges of the FTP server when traversing the file system.
Affected Products:
- Pablo Software Solutions Baby FTP Server 1.2.0
References:
- Pablo Software Solutions: Baby FTP Server Product Page
- dr_insane: baby.txt
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