The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2008-04-07T18:00:00.000Z

Updated: 2024-08-07T08:24:42.935Z

Reserved: 2008-04-02T00:00:00.000Z

Link: CVE-2008-1618

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2008-04-07T18:44:00.000

Modified: 2026-04-23T00:35:47.467

Link: CVE-2008-1618

cve-icon Redhat

No data.