abuse.console in Red Hat 2.1 uses relative pathnames to find and execute the undrv program, which allows local users to execute arbitrary commands via a path that points to a Trojan horse program.
rxvt, when compiled with the PRINT_PIPE option in various Linux operating systems including Linux Slackware 3.0 and RedHat 2.1, allows local users to gain root privileges by specifying a malicious program using the -print-pipe command line parameter.
Certain configurations of wu-ftp FTP server 2.4 use a _PATH_EXECPATH setting to a directory with dangerous commands, such as /bin, which allows remote authenticated users to gain root access via the "site exec" command.
Telnet allows a remote client to specify environment variables including LD_LIBRARY_PATH, allowing an attacker to bypass the normal system libraries and gain root access.
SunOS sendmail 5.59 through 5.65 uses popen to process a forwarding host argument, which allows local users to gain root privileges by modifying the IFS (Internal Field Separator) variable and passing crafted values to the -oR option.
In Sendmail, attackers can gain root privileges via SMTP by specifying an improper "mail from" address and an invalid "rcpt to" address that would cause the mail to bounce to a program.
rmmount in SunOS 5.7 may mount file systems without the nosuid flag set, contrary to the documentation and its use in previous versions of SunOS, which could allow local users with physical access to gain root privileges by mounting a floppy or CD-ROM that contains a setuid program and running volcheck, when the file systems do not have the nosuid option specified in rmmount.conf.
serial_ports administrative program in IRIX 4.x and 5.x trusts the user's PATH environmental variable to find and execute the ls program, which allows local users to gain root privileges via a Trojan horse ls program.
Vulnerability in sgihelp in the SGI help system and print manager in IRIX 5.2 and earlier allows local users to gain root privileges, possibly through the clogin command.
dpsexec (DPS Server) when running under XDM in IBM AIX 3.2.5 and earlier does not properly check privileges, which allows local users to overwrite arbitrary files and gain privileges.
HP-UX 9.x does not properly enable the Xauthority mechanism in certain conditions, which could allow local users to access the X display even when they have not explicitly been authorized to do so.