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TITLE:
WatchGuard Firebox Products User Enumeration Weakness

SECUNIA ADVISORY ID:
SA29708

VERIFY ADVISORY:
http://secunia.com/advisories/29708/

CRITICAL:
Not critical

IMPACT:
Exposure of system information

WHERE:
>From remote

OPERATING SYSTEM:
WatchGuard Firebox X700
http://secunia.com/product/12099/
WatchGuard Firebox X500
http://secunia.com/product/8885/
WatchGuard Firebox X1000
http://secunia.com/product/11986/
WatchGuard Firebox X 750e
http://secunia.com/product/11420/
WatchGuard Firebox X 5500e
http://secunia.com/product/15988/
WatchGuard Firebox X 1250e
http://secunia.com/product/11418/
WatchGuard Firebox X550e
http://secunia.com/product/18233/
WatchGuard Firebox X8500e
http://secunia.com/product/18230/
WatchGuard Firebox X6500e
http://secunia.com/product/18231/

DESCRIPTION:
Luke Jennings has reported a weakness in some WatchGuard Firebox
products, which can be exploited by malicious people to determine
valid usernames.

The problem is that different responses are being sent when using a
valid or an invalid username. This can be exploited to determine
valid usernames.

The weakness is reported in WatchGuard Firebox X Peak and X Core
e-series prior to firmware version 10.

SOLUTION:
Update to firmware version 10.

PROVIDED AND/OR DISCOVERED BY:
Luke Jennings, MWR InfoSecurity

ORIGINAL ADVISORY:
http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf

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About:
This Advisory was delivered by Secunia as a free service to help
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Secunia NEVER sends attached files with advisories.
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