alpine 3.6
access weakness #216


Weakness Breakdown


An access weakness occurs when software does not properly implement permissions that could have unintended consequences if exploited by malicious actors. An example of this weakness is when a default username and password are set by the developer but do not get changed by the system administrator.

Warning code(s):

Ensure that umask is given most restrictive possible setting.

File Name:



The highlighted line of code below is the trigger point of this particular Alpine 3.6 access weakness.

    snprintf (path, _POSIX_PATH_MAX, "%s/tmp/%s.%lld.%u_%d.%s%s",
	      dest->path, subdir, (long long)time (NULL), (unsigned int)getpid (),
	      Counter++, NONULL (Hostname), suffix);

    dprint (2, (debugfile, "maildir_open_new_message (): Trying %s.\n",

    if ((fd = open (path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1)
      if (errno != EEXIST)
	umask (omask);
	mutt_perror (path);
	return -1;
      dprint (2, (debugfile, "maildir_open_new_message (): Success.\n"));
      msg->path = safe_strdup (path);
  umask (omask);

  if ((msg->fp = fdopen (fd, "w")) == NULL)
    FREE (&msg->path);
    close (fd);
    unlink (path);
    return (-1);

  return 0;

 * Commit a message to a maildir folder.
 * msg->path contains the file name of a file in tmp/. We take the
 * flags from this file's name. 
 * ctx is the mail folder we commit to.
 * hdr is a header structure to which we write the message's new
 * file name.  This is used in the mh and maildir folder synch
 * routines.  When this routine is invoked from mx_commit_message, 

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