Title: BEA Systems WebLogic Server DOS Device Denial of Service Vulnerability
Severity: MODERATE
Description:
BEA Systems WebLogic Server is an enterprise level web and wireless application server for Microsoft Windows and most Unix and Linux vendors.
An issue has been reported which could enable a remote user to crash a WebLogic host.
By design, requests sent to a WebLogic Server are placed in a queue while waiting to be performed. The requests are then assigned to a thread that carries out the task on it. When a request is made for a .jsp resource, WebLogic invokes an external compiler to handle the request.
Submitting a request for a DOS device appended with a .jsp extension (ie: aux.jsp), will lead the server to carry out the request as though it is a legitimate .jsp request. The external compiler is invoked, however due to the handling of DOS devices, the working thread never stops. Therefore, if numerous requests, composed in the described manner, are submitted the server could stop responding.
Affected Products:
- BEA Systems Weblogic Server 6.1.0
- BEA Systems Weblogic Server 6.1.0 SP 1
References:
- Oracle: WebLogic Server Product Homepage
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