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Cisco IOS User Enumeration via Error Messages

oval:org.mitre.oval:def:5824

Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing as reported for the Aironet Bridge.

Family:
ios
Status:
ACCEPTED
Platform(s):
  • Cisco IOS
Class:
vulnerability
Reference(s):
  • CVE-2003-0512
Product(s):