Title: Multiple FTP Server Virtual User File Removal Vulnerability
Severity: MODERATE
Description:
A problem has been reported in some FTP servers that may allow users to circumvent file permissions.
Under some circumstances, it may be possible for users to remove files that have been placed in an FTP archive by other users. A file placed by one user may be delete by another user with insufficient permissions, though the target file may not be overwritten. This problem has been reported to occur in the instance of the virtual user feature of FTP servers being used on Solaris systems.
This problem has been reported to affect both NCFTPD and ProFTPD. Exploitation of this issue may result in the destruction of data.
Affected Products:
- NcFTP Software NcFTPD 2.7.1
- ProFTPD Project ProFTPD 1.2.7
- Sun Cobalt Qube 3
References:
- NcFTP Software: NcFTPd Home Page
- ProFTPD: ProFTPD Home Page
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