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GEN:SID | 1:972 |
Message | WEB-IIS %2E-asp access |
Summary | This event is generated when an attempt is made to access an Active Server Page (ASP) .asp file when the period is hex encoded as "%2e". |
Impact | Intelligence gathering activity. A vulnerability exists that discloses the .asp file contents when it is reference using the "%2e" hex encoding. |
Detailed Information | Microsoft Internet Information Service (IIS) uses Active Server Page to supply HTML and server-side scripting. ASP files use a .asp extension. When the period of the .asp is hex-encoded with a "%2e" to reference an ASP file, the contents of the file are disclosed. |
Affected Systems | Hosts running IIS 3.0 |
Attack Scenarios | An attacker can attempt use the hex-encoded reference to the .asp file to see the contents of the file. Sensitive information may by disclosed depending on the selected file. |
Ease of Attack | Simple. |
Corrective Action | Upgrade to a more current version of IIS. |
Additional References | CVE http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-0253 Bugtraq: http://www.securityfocus.com/bid/1814 |
Rule References | bugtraq: 1814 cve: 1999-0253 |
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DID:690542
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