File: 1457.txt

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Rule:

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Sid:
1457

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Summary:
This event is generated when an attempt is made to exploit an 
authentication vulnerability in a web server or an application running
on that server.

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Impact:
Information gathering and system integrity compromise. Possible unauthorized
administrative access to the server or application.

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Detailed Information:
This event is generated when an attempt is made to exploit a known
vulnerability in Blackboard CourseInfo running on  a web server. 

Any valid user is able to modify the contents of the database by
supplying form values of their choosing to the perl scripts running the
application.

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Affected Systems:
	Blackboard CourseInfo 4.0 for UNIX and Windws NT

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Attack Scenarios:
An attacker can access the authentication mechanism and supply his/her
own credentials to gain access. Alternatively the attacker can exploit
weaknesses to gain access as the administrator.

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Ease of Attack:
Simple. No exploit software required.

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False Positives:
None known.

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False Negatives:
None known.

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

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Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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