ftpd.c in wu-ftpd 2.6.2, when running on "operating systems that only allow one non-connected socket bound to the same local address," does not close failed connections, which allows remote attackers to cause a denial of service.

Buffer overflow in the SockPrintf function in wu-ftpd 2.6.2 and earlier, when compiled with MAILADMIN option enabled on a system that supports very long pathnames, might allow remote anonymous users to execute arbitrary code by uploading a file with a long pathname, which triggers the overflow when wu-ftpd constructs a notification message to the administrator.

An integer overflow in ls in the fileutils or coreutils packages may allow local users to cause a denial of service or execute arbitrary code via a large -w value, which could be remotely exploited via applications that use ls, such as wu-ftpd.

ls in the fileutils or coreutils packages allows local users to consume a large amount of memory via a large -w value, which can be remotely exploited via applications that use ls, such as wu-ftpd.

Off-by-one error in the fbrealpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.

wu-ftpd 2.4 FTP server does not properly drop privileges when an ABOR (abort file transfer) command is executed during a file transfer, which causes a signal to be handled incorrectly and allows local and possibly remote attackers to read arbitrary files.

Race condition in wu-ftpd and BSDI ftpd allows remote attackers to gain root access via the SITE EXEC command.

Buffer overflow in WU-FTPD and related FTP servers allows remote attackers to gain root privileges via MAPPINGCHDIR.

Buffer overflows in wuarchive ftpd (wu-ftpd) and ProFTPD lead to remote root access, a.k.a. palmetto.

wu-ftpd FTP daemon allows any user and password combination.

Certain configurations of wu-ftp FTP server 2.4 use a PATHEXECPATH setting to a directory with dangerous commands, such as /bin, which allows remote authenticated users to gain root access via the "site exec" command.

wu-ftp allows files to be overwritten via the rnfr command.

Buffer overflow in wu-ftp from PASV command causes a core dump.

PASV core dump in wu-ftpd daemon when attacker uses a QUOTE PASV command after specifying a username and password.

FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce.

FTP servers such as OpenBSD ftpd, NetBSD ftpd, ProFTPd and Opieftpd do not properly cleanse untrusted format strings that are used in the setproctitle function (sometimes called by setproctitle), which allows remote attackers to cause a denial of service or execute arbitrary commands.

Vulnerability in wu-ftpd 2.6.0, and possibly earlier versions, which is unrelated to the ftpglob bug described in CVE-2001-0550.

wu-ftpd 2.6.1 allows remote attackers to execute arbitrary commands via a "~{" argument to commands such as CWD, which is not properly handled by the glob function (ftpglob).

Format string vulnerability in wu-ftp 2.6.1 and earlier, when running with debug mode enabled, allows remote attackers to execute arbitrary commands via a malformed argument that is recorded in a PASV port assignment.

Buffer overflow in the skeychallenge function in ftpd.c for wu-ftp daemon (wu-ftpd) 2.6.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a s/key (SKEY) request with a long name.

wu-ftpd 2.6.2 and earlier, with the restricted-gid option enabled, allows local users to bypass access restrictions by changing the permissions to prevent access to their home directory, which causes wu-ftpd to use the root directory instead.

The wufnmatch function in wufnmatch.c in wu-ftpd 2.6.1 and 2.6.2 allows remote attackers to cause a denial of service (CPU exhaustion by recursion) via a glob pattern with a large number of (wildcard) characters, as demonstrated using the dir command.