CVE-2004-2621 Information

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.

Reference

http://secunia.com/advisories/12881 http://securitytracker.com/id?1011846 http://www.osvdb.org/11002 http://www.securityfocus.com/bid/11495 http://www130.nortelnetworks.com/cgi-bin/eserv/cs/main.jsp?level=6&category=8&subcategory=6&subtype=&DocumentOID=276620&RenditionID=REND159588 https://exchange.xforce.ibmcloud.com/vulnerabilities/17812