Vendor: openbsd
ftpd before "NetBSD-ftpd 20230930" can leak information about the host filesystem before authentication via an MLSD or MLST command. tnftpd (the portable version of NetBSD ftpd) before 20231001 is also vulnerable.
The ftpd gem 0.2.1 for Ruby allows remote attackers to execute arbitrary OS commands via shell metacharacters in a LIST or NLST command argument within FTP protocol traffic.
ftpd, as used by Gentoo and Debian Linux, sets the gid to the effective uid instead of the effective group id before executing /bin/ls, which allows remote authenticated users to list arbitrary directories with the privileges of gid 0 and possibly enable additional attack vectors.
ftpd in NetBSD 1.5 through 1.5.3 and 1.6 does not properly quote a digit in response to a STAT command for a filename that contains a carriage return followed by a digit, which can cause firewalls and other intermediary devices to lose proper track of the FTP session.
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 set_proc_title), which allows remote attackers to cause a denial of service or execute arbitrary commands.