U

UDDI, 275277

UDP floods, 371372

See also DoS attacks

Uniform Resource Identifiers. See URIs

URI hacking, 34

URIs, 34

URLScan, 3940, 108, 484485

adjusting priority, 499

configuration, 492497

deployment, 485492

disabling, 500

IIS log evasion countermeasure, 101

references, 505506

reloading, 497498

user enumeration, 319

user registration attacks, 149151

User-Agent headers, 172173

user-modifiable roles, 192193

username/password threats

password guessing, 124130

username enumeration, 122124