Race condition vulnerability in Nortel Contivity VPN Client allows for MITM attack

CVE-2004-2621 · MEDIUM Severity

AV:N/AC:H/AU:N/C:P/I:P/A:N

Nortel Contivity VPN Client 2.1.7, 3.00, 3.01, 4.91, and 5.01, when opening a VPN tunnel, does not check the gateway certificate until after a dialog box has been displayed to the user, which creates a race condition that allows remote attackers to perform a man-in-the-middle (MITM) attack.

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