Bug: Firefox Remote Code Execution and DoS 1.5.0.2 ( Ascii Version )

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WLB2

Firefox Remote Code Execution and DoS 1.5.0.2

Published
Credit
Risk
2006.04.26
chris splices org
Low
CWE
CVE
Local
Remote
CWE-399
CVE-2006-1993
Yes
Yes

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.1/10
6.4/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
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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