CVE-2008-1618

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.

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

1.74% chance of exploitation in the next 30 days, 76th percentile

Published

2008-04-07

Updated

2024-08-07

Proof-of-concept exploits (1)

• http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumera…

References

• CVE Record
• NVD entry

Related

• CVE-2008-1613
• CVE-2008-1620
• CVE-2008-1611
• CVE-2008-1621
• CVE-2008-1610
• CVE-2008-1623