The Sametime server in IBM Lotus Instant Messaging and Web Conferencing 6.5.1 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Lotus_instant_messaging_and_web_conferencing | Ibm | 6.5.1 (including) | 6.5.1 (including) |