Microsoft Windows Server 2003, when time restrictions are in effect for user accounts, generates different error messages for failed login attempts with a valid user name than for those with an invalid user name, which allows context-dependent attackers to determine valid Active Directory account names.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_2003_server | Microsoft | gold (including) | gold (including) |
| Windows_2003_server | Microsoft | sp1 (including) | sp1 (including) |
| Windows_2003_server | Microsoft | sp2 (including) | sp2 (including) |
References
- http://osvdb.org/36138
- http://secunia.com/advisories/25457
- http://www.notsosecure.com/folder2/2007/05/27/logon-time-restrictions-in-a-domain-in-windows-server-2003-allows-username-enumeration/
- http://www.securityfocus.com/bid/24248
- http://osvdb.org/36138
- http://secunia.com/advisories/25457
- http://www.notsosecure.com/folder2/2007/05/27/logon-time-restrictions-in-a-domain-in-windows-server-2003-allows-username-enumeration/
- http://www.securityfocus.com/bid/24248