SANS Tool Detects SNMP

By Jim Rapoza  |  Posted 2002-02-18 Print this article Print

eWeek Labs has tested a free tool from the SANS Institute that makes it much easier and faster to find rogue SNMP.

Network administrators have been scrambling on the recent news about the serious security vulnerability in SNMP, but port scanners have proved ill-equipped for the task of full SNMP disclosure. eWeek Labs has tested a free tool from the SANS Institute that makes it much easier and faster to find rogue SNMP.

SNMPing, available for download from, is a simple Windows-based tool that can quickly scan all systems in a network to find those running SNMP. The tool searches on port 161, the default for SNMP, but it can be configured to look at any port.

In less than 2 minutes, SNMPing scanned our entire Class C lab network for rogue SNMP, and we were surprised by the results: The tool detected a network printer, a wireless access point and a test NetWare server that had SNMP enabled.

We found SNMPing much easier to use and more accurate than traditional port scanning tools such as Nmap, which usually know only if port 161 is open.

The results window in SNMPing shows systems that have SNMP enabled and those on which it has been disabled. All results of a network scan can also be saved to a text file. —Jim Rapoza, eWeek Labs East Coast Technical Director

Jim Rapoza, Chief Technology Analyst, eWEEK.For nearly fifteen years, Jim Rapoza has evaluated products and technologies in almost every technology category for eWEEK. Mr Rapoza's current technology focus is on all categories of emerging information technology though he continues to focus on core technology areas that include: content management systems, portal applications, Web publishing tools and security. Mr. Rapoza has coordinated several evaluations at enterprise organizations, including USA Today and The Prudential, to measure the capability of products and services under real-world conditions and against real-world criteria. Jim Rapoza's award-winning weekly column, Tech Directions, delves into all areas of technologies and the challenges of managing and deploying technology today.

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