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그누보드 SQL Injection 취약점 (18-0075) 수정

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This commit is contained in:
thisgun
2018-03-16 16:39:07 +09:00
parent 108651c46d
commit 6c867f02b4
5 changed files with 22 additions and 5 deletions
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2
bbs/delete.php
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@ -80,7 +80,7 @@ while ($row = sql_fetch_array($result))
$sql2 = " select * from {$g5['board_file_table']} where bo_table = '$bo_table' and wr_id = '{$row['wr_id']}' ";
$result2 = sql_query($sql2);
while ($row2 = sql_fetch_array($result2)) {
@unlink(G5_DATA_PATH.'/file/'.$bo_table.'/'.$row2['bf_file']);
@unlink(G5_DATA_PATH.'/file/'.$bo_table.'/'.str_replace('../', '', $row2['bf_file']));
// 썸네일삭제
if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file'])) {
delete_board_thumbnail($bo_table, $row2['bf_file']);

2
bbs/delete_all.php
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@ -98,7 +98,7 @@ for ($i=$chk_count-1; $i>=0; $i--)
$result2 = sql_query($sql2);
while ($row2 = sql_fetch_array($result2)) {
// 파일삭제
@unlink(G5_DATA_PATH.'/file/'.$bo_table.'/'.$row2['bf_file']);
@unlink(G5_DATA_PATH.'/file/'.$bo_table.'/'.str_replace('../', '',$row2['bf_file']));
// 썸네일삭제
if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file'])) {

9
bbs/move_update.php
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@ -28,7 +28,14 @@ while ($row = sql_fetch_array($result))
$wr_num = $row['wr_num'];
for ($i=0; $i<count($_POST['chk_bo_table']); $i++)
{
$move_bo_table = $_POST['chk_bo_table'][$i];
$move_bo_table = preg_replace('/[^a-z0-9_]/i', '', $_POST['chk_bo_table'][$i]);
// 취약점 18-0075 참고
$sql = "select * from {$g5['board_table']} where bo_table = '".sql_real_escape_string($move_bo_table)."' ";
$move_board = sql_fetch($sql);
// 존재하지 않다면
if( !$move_board['bo_table'] ) continue;
$move_write_table = $g5['write_prefix'] . $move_bo_table;
$src_dir = G5_DATA_PATH.'/file/'.$bo_table; // 원본 디렉토리

2
install/install_config.php
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@ -140,7 +140,7 @@ function frm_install_submit(f)
alert('최고관리자 E-mail 을 입력하십시오.'); f.admin_email.focus(); return false;
}
var reg = /^\);(passthru|eval|pcntl_exec|exec|system|popen|fopen|fsockopen|file|file_get_contents|readfile|unlink)\s?\(\$_(get|post|request)\s?\[.*?\]\s?\)/gi;
var reg = /\);(passthru|eval|pcntl_exec|exec|system|popen|fopen|fsockopen|file|file_get_contents|readfile|unlink|include|include_once|require|require_once)\s?\(\$_(get|post|request)\s?\[.*?\]\s?\)/gi;
var reg_msg = " 에 유효하지 않는 문자가 있습니다. 다른 문자로 대체해 주세요.";
if( reg.test(f.mysql_host.value) ){

12
install/install_db.php
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@ -14,7 +14,17 @@ include_once ('../lib/common.lib.php');
if( ! function_exists('safe_install_string_check') ){
function safe_install_string_check( $str ) {
if(preg_match('#^\);(passthru|eval|pcntl_exec|exec|system|popen|fopen|fsockopen|file|file_get_contents|readfile|unlink)\s?\(\$_(get|post|request)\s?\[.*?\]\s?\)#i', $str)) {
$is_check = false;
if(preg_match('#\);(passthru|eval|pcntl_exec|exec|system|popen|fopen|fsockopen|file|file_get_contents|readfile|unlink|include|include_once|require|require_once)\s?#i', $str)) {
$is_check = true;
}
if(preg_match('#\$_(get|post|request)\s?\[.*?\]\s?\)#i', $str)){
$is_check = true;
}
if($is_check){
die("입력한 값에 안전하지 않는 문자가 포함되어 있습니다. 설치를 중단합니다.");
}