It has been discovered that lftp up to and including version 4.8.3 does not properly sanitize remote file names, leading to a loss of integrity on the local system when reverse mirroring is used. A remote attacker may trick a user to use reverse mirroring on an attacker controlled FTP server, resulting in the removal of all files in the current working directory of the victim's system.

The get1 command, as used by lftpget, in LFTP before 4.0.6 does not properly validate a server-provided filename before determining the destination filename of a download, which allows remote servers to create or overwrite arbitrary files via a Content-Disposition header that suggests a crafted filename, and possibly execute arbitrary code as a consequence of writing to a dotfile in a home directory.

mirror --script in lftp before 3.5.9 does not properly quote shell metacharacters, which might allow remote user-assisted attackers to execute shell commands via a malicious script. NOTE: it is not clear whether this issue crosses security boundaries, since the script already supports commands such as "get" which could overwrite executable files.

An issue was discovered in glFTPd 2.11a that allows remote attackers to cause a denial of service via exceeding the connection limit.

Untrusted search path vulnerability in ALFTP before 5.31 allows local users to gain privileges via a Trojan horse executable file in a directory that is accessed for reading an extensionless file, as demonstrated by executing the README.exe file when a user attempts to access the README file.

Directory traversal vulnerability in the FTP client in ALTools ESTsoft ALFTP 4.1 beta 2 and 5.0 allows remote FTP servers to create or overwrite arbitrary files via a .. (dot dot) in a response to a LIST command, a related issue to CVE-2002-1345. NOTE: this can be leveraged for code execution by writing to a Startup folder.

Directory traversal vulnerability in ALTools ALFTP FTP Server 4.1 beta 1, and possibly earlier, allows remote attackers to create arbitrary directories via directory traversal sequences in a MKD request. NOTE: the provenance of this information is unknown; details are obtained from third party sources.

Unspecified vulnerability in ALTools ALFTP FTP Server 4.1 beta 1, and possibly earlier, allows remote authenticated users to obtain the installation path via unknown vectors related to the REN command, probably due to response messages. NOTE: the provenance of this information is unknown; details are obtained from third party sources.

Unspecified vulnerability in glFTPd before 2.01 RC5 allows remote attackers to bypass IP checks via a crafted DNS hostname, possibly a hostname that appears to be an IP address.

Multiple directory traversal vulnerabilities in sitenfo.sh, sitezipchk.sh, and siteziplist.sh in Glftpd 1.26 to 2.00 allow remote authenticated users to (1) determine the existence of arbitrary files, (2) list files in restricted directories, or (3) read arbitrary files from within ZIP or gzip files, via .. (dot dot) sequences and globbing ("*") characters in a SITE NFO command.