TWiki 4.0.5 and earlier, when running under Apache 1.3 using ApacheLogin with sessions and ErrorDocument 401 redirects to a valid wiki topic, does not properly handle failed login attempts, which allows remote attackers to read arbitrary content by cancelling out of a failed authentication with a valid username and invalid password.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Twiki | Twiki | * | 4.0.5 (including) |
| Twiki | Ubuntu | dapper | * |
| Twiki | Ubuntu | edgy | * |
| Twiki | Ubuntu | feisty | * |
| Twiki | Ubuntu | gutsy | * |
| Twiki | Ubuntu | hardy | * |
| Twiki | Ubuntu | intrepid | * |
| Twiki | Ubuntu | jaunty | * |
| Twiki | Ubuntu | karmic | * |