CVEvulnerability

CVE-2004-2621

4.0 MEDIUM Published 2004-12-31 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2004-12-31
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:H/Au:N/C:P/I:P/A:N

Description

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.

Affected configurations

• nortel contivity 2.1.7 • nortel contivity 3.00 • nortel contivity 3.01 • nortel contivity 4.91 • nortel contivity 5.01

References