File: 283.txt

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Rule:

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Sid: 283

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Summary:
Versions of the Netscape browser including and prior to 4.75 are vulnerable to a buffer overflow that may lead to a root shell listening on port 6968. This event is generated when a request is made to a web site exploiting this vulnerability.

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Impact:
System compromize presenting the attacker with the opportunity to
gain remote access to the victim host.

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Detailed Information:
A buffer overflow condition exists in the HTML parser on some versions of Netscape Navigator. It is possible for a remote attacker to gain a root shell on the victim host.

A long password value in a form field may result in an attacker being able to execute arbitrary commands.

Affected Systems:
	Netscape Navigator 4.75 and prior

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Attack Scenarios:
The attacker would need to supply a link on a web page or HTML email that triggers the overflow.

Exploit scripts are available

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Ease of Attack:
Simple. Exploits are available.

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False Positives:
None Known

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False Negatives:
None Known

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Corrective Action:
Upgrade to the latest non-affected version of the software.

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Contributors:
Max Vision <vision@whitehats.com>
Sourcefire Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

CVE:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-1189

Arachnids:
http://www.whitehats.com/info/IDS215

Bugtraq:
http://www.securityfocus.com/bid/822

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