/phpcms/modules/member/index.php phpcms注入漏洞修复
定位到/phpcms/modules/member/index.php 610 行
源码:
$password = isset($_POST['password']) && trim($_POST['password']) ? trim($_POST['password']) : showmessage(L('password_empty'), HTTP_REFERER);
修改为:
$password = isset($_POST['password']) && trim($_POST['password']) ? addslashes(urldecode(trim($_POST['password']))) : showmessage(L('password_empty'), HTTP_REFERER);
/api/phpsso.php phpcms注入漏洞修复
定位到/api/phpsso.php 118行
源码:
$arr['uid'] = intval($arr['uid']);
$phpssouid = $arr['uid'];
合并为:
$phpssouid = intval($arr['uid']);
/phpcms/modules/content/down.php前台注入导致任意文件读取漏洞修复
定位到/phpcms/modules/content/down.php 17行
源码:
parse_str($a_k);
修改为:
$a_k = safe_replace($a_k);
parse_str($a_k);
定位到/phpcms/modules/content/down.php 89行
源码:
parse_str($a_k);
修改为:
$a_k = safe_replace($a_k);
parse_str($a_k);
定位到/phpcms/modules/content/down.php 120行
源码:
file_down($fileurl, $filename);
修改为:
$fileurl = str_replace(array('<','>'), '', $fileurl);
file_down($fileurl, $filename);
/phpcms/modules/pay/respond.php phpcmsv9宽字节注入
定位到/phpcms/modules/pay/respond.php 16行
源码:
$payment = $this->get_by_code($_GET['code']);
修改为:
$payment = $this->get_by_code(mysql_real_escape_string($_GET['code']));
phpsso_server/phpcms/modules/phpsso/index.php phpcms注入漏洞
定位到phpsso_server/phpcms/modules/phpsso/index.php 424行
源码:
$applist = getcache('applist', 'admin');
再其下面添加代码:
foreach ($applist as $key => $value) {
unset($applist[$key]['authkey']);
}
api/get_menu.php phpcms authkey泄漏漏洞
定位到api/get_menu.php 28行
源码:
$cachefile = str_replace(array('/', '//'), '', $cachefile);
修改为
$cachefile = str_replace(array('/', '//', '\\'), '', $cachefile);
phpcms/modules/poster/poster.php 文件中,未对输入参数$_GET[‘group’]进行严格过滤,导致注入漏洞
定位到/phpcms/modules/poster/poster.php 219行
源码:
if ($_GET['group']) {
$group = " `".$_GET['group']."`";
$fields = "*, COUNT(".$_GET['group'].") AS num";
$order = " `num` DESC";
}
改为:
$_GET['group'] = addslashes(urldecode(trim($_GET['group'])));
if ($_GET['group']) {
$_GET['group'] = preg_replace('#`#', '', $_GET['group']);
$group = " `".$_GET['group']."`";
$fields = "*, COUNT(".$_GET['group'].") AS num";
$order = " `num` DESC";
}
phpcms/libs/classes/attachment.class.php某处逻辑问题导致getshell修复方案
定位到phpcms/libs/classes/attachment.class.php 144行
源码:
function download($field, $value,$watermark = '0',$ext = 'gif|jpg|jpeg|bmp|png', $absurl = '', $basehref = '')
{
global $image_d;
$this->att_db = pc_base::load_model('attachment_model');
$upload_url = pc_base::load_config('system','upload_url');
$this->field = $field;
修改(一):
function download($field, $value,$watermark = '0',$ext = 'gif|jpg|jpeg|bmp|png', $absurl = '', $basehref = '')
{
// 此处增加类型的判断
if($ext !== 'gif|jpg|jpeg|bmp|png'){
if(!in_array(strtoupper($ext),array('JPG','GIF','BMP','PNG','JPEG'))) exit('附加扩展名必须为gif、jpg、jpeg、bmp、png');
}
global $image_d;
$this->att_db = pc_base::load_model('attachment_model');
$upload_url = pc_base::load_config('system','upload_url');
$this->field = $field;
修改(二):
function download($field, $value,$watermark = '0',$ext = 'gif|jpg|jpeg|bmp|png', $absurl = '', $basehref = ''){
之后加上
$extArray=explode('|',$ext);
if(!empty($extArray) && is_array($extArray)){
foreach($extArray as $k => $v){
if(!in_array(strtolower($v), array('gif','jpg','jpeg','bmp','png'))); exit('0');//循环判断如果有一个不符合,直接返回 0
}
}
PHPCMS V9.6.2 SQL注入漏洞
- phpcms/libs/classes/param.class.php 位置约109行
原来代码
$value = isset($_COOKIE[$var]) ? sys_auth($_COOKIE[$var], 'DECODE') : $default;
替换为
$value = isset($_COOKIE[$var])?addslashes(sys_auth($_COOKIE[$var],'DECODE')):$default;
(2)/phpsso_server/phpcms/libs/classes/param.class.php 位置约108行
原来代码
return isset($_COOKIE[$var]) ? sys_auth($_COOKIE[$var], 'DECODE') : $default;
替换为
return isset($_COOKIE[$var]) ? addslashes(sys_auth($_COOKIE[$var],'DECODE')) : $default;
phpcms authkey生成算法问题导致authkey泄露
在/caches/configs/system.php,增加第一个参数: 'alivulfix' => 'yes',
caches/configs/system.php 找到并修改auth_key,20位字符串;具体写什么,自定义即可;找到并修改phpsso_auth_key,32位字符串,具体写什么,自定义即可;
phpsso/caches/configs/system.php找到并修改phpsso_auth_key,32位字符串;具体写什么与以上auth_key相同。
PHPCMS v9.6.3存在文件包含漏洞的修复方法
phpcms\libs\classes\param.class.php
phpsso_server\phpcms\libs\classes\param.class.php
源代码:
public static function get_cookie($var, $default = '') {
$var = pc_base::load_config('system','cookie_pre').$var;
$value = isset($_COOKIE[$var]) ? sys_auth($_COOKIE[$var], 'DECODE', md5(PC_PATH.'cookie'.$var).pc_base::load_config('system','auth_key')) : $default;
if(in_array($var,array('_userid','userid','siteid','_groupid','_roleid'))) {
$value = intval($value);
} elseif(in_array($var,array('_username','username','_nickname','admin_username','sys_lang'))) { // site_model auth
$value = safe_replace($value);
}
return $value;
}
修改后的代码:
public static function get_cookie($var, $default = '') {
$var_base = $var;
$var = pc_base::load_config('system','cookie_pre').$var;
$value = isset($_COOKIE[$var]) ? sys_auth($_COOKIE[$var], 'DECODE', md5(PC_PATH.'cookie'.$var).pc_base::load_config('system','auth_key')) : $default;
if(in_array($var_base,array('_userid','userid','siteid','_groupid','_roleid'))) {
$value = intval($value);
} elseif(in_array($var_base,array('_username','username','_nickname','admin_username','sys_lang'))) { // site_model auth
$value = safe_replace($value);
}
return $value;
}
GET SHELL block
phpcms/modules/block/block_admin.php
$template = isset($_POST['template']) && trim($_POST['template']) ? trim($_POST['template']) : '';
改为
$template = isset($_POST['template']) && trim($_POST['template']) ? trim(safe_replace($_POST['template'])) : '';
两处
GET SHELL 2
phpcms/libs/functions/global.func.php 283行
把
@eval("\$array = $data;");
改为:
$data=safe_replace($data);
@eval("\$array = \"$data\";");
GET SHELL member
phpcms/modules/member/member_model.php,约47行
$model_import = @file_get_contents($_FILES['model_import']['tmp_name']);
改为
$model_import = safe_replace(@file_get_contents($_FILES[‘model_import’][‘tmp_name’]));
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