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Re: Need more vuln information on Nessus PluginID 15640

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Subject: Re: Need more vuln information on Nessus PluginID 15640
From: "George A. Theall" <theall@tenablesecurity.com>
Date: Fri, 08 Dec 2006 12:51:25 -0500
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On Fri, Dec 08, 2006 at 04:34:02PM +0100, oskar wrote:

Can someone provide me with more information on the actual vulnerability relating to
http://www.nessus.org/plugins/index.php?view=viewsrc&id=15640
It doesn't include any reference to an existing vulnerability.
No bugtragid, no cve, nothing, so what does this relate to.

To expand on Michel's answer, it's a generic test for a format string vulnerability in a web server; basically, Nessus probes the target using various methods (eg, GET, POST, TRACE, ...) and URIs with format strings.

If Nessus is reporting a hole, then it apparently was able to crash the service; if just a warning, it saw a string in a response that looked like a 8 digit hex number and such a number was not seen when probing for a non-existent page. Setting the debug level to 1 should log some info in nessusd.dump showing you what it found for a normal answer and from the format string attack.

George
--
theall@tenablesecurity.com
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