SID 1:12064

Rule Category

SERVER-IIS -- Snort has detected traffic exploiting vulnerabilities in Microsoft IIS Web Servers.

Alert Message

SERVER-IIS w3svc _vti_bin null pointer dereference attempt

Rule Explanation

The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP Professional SP2 allows remote attackers to execute arbitrary code via multiple requests to ".dll" followed by arguments such as "~0" through "~9", which causes ntdll.dll to produce a return value that is not correctly handled by IIS, as demonstrated using "/_vti_bin/.dll/*/~0". NOTE: the consequence was originally believed to be only a denial of service (application crash and reboot). Impact: CVSS base score 7.8 CVSS impact score 6.9 CVSS exploitability score 10.0 confidentialityImpact NONE integrityImpact COMPLETE availabilityImpact COMPLETE Details: Ease of Attack:

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives

Contributors

Talos research team. This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology. For more information see [nvd].