Firefox Remote Code Execution and DoS 1.5.0.2

2006.04.26

Credit: chris splices org

Risk: Low

Local: Yes

Remote: Yes

CVE: CVE-2006-1993

CWE: CWE-399

CVSS Base Score: 5.1/10

Impact Subscore: 6.4/10

Exploitability Subscore: 4.9/10

Exploit range: Remote

Attack complexity: High

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

---------------------------------------------------
Software:  
 Firefox Web Browser
Tested: 
 Linux, Windows clients' version 1.5.0.2
Result:  
 Firefox Remote Code Execution and Denial of Service - Vendor contacted, no patch yet.
Problem:
 A handling issue exists in how Firefox handles certain Javascript in js320.dll and xpcom_core.dll
regarding iframe.contentWindow.focus().  By manipulating this feature a buffer overflow will occur.  
Proof of Concept:
 http://www.securident.com/vuln/ff.txt
Credits:
 splices(splices [dot] org)
 spiffomatic64(spiffomatic64 [dot] com)
 Securident Technologies (securident [dot] com)      
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Firefox Remote Code Execution and DoS 1.5.0.2

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