SSH Vulnerability Scan

SSH servers are a critical component of Internet infrastructure.

Recent security holes make updating SSH servers critically important.
CRC32 deattack hole discovered in February 2001.
Public exploits have been available for a few months.
This hole is currently widely exploited. 

Since February 2001, we scanned University of Michigan on a daily basis.
About 400,000 addresses.
2,300 hosts running SSH services.