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Nortel Contivity VPN Client Open Tunnel Certificate Verification Issue
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Secunia Advisory:
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SA12881
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Release Date:
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2004-10-20
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Last Update:
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2004-10-29
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Popularity:
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11,805 views
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Critical:
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Less critical
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Impact:
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Spoofing
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Where:
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From remote
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Solution Status:
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Vendor Workaround
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| Software: | Nortel Contivity VPN Client
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Roger Sylvain has reported a vulnerability in Nortel Contivity VPN Client, potentially allowing malicious people to open a VPN tunnel to the client.
When the Contivity VPN Client establishes a connection to a gateway, the gateway certificate isn't checked before the user answers a dialog box. While the dialog box is displayed to the user, the VPN tunnel remains open allowing the gateway network access to the client system.
Successful exploitation requires that an attacker is able to conduct a man-in-the-middle attack, thereby making the client connect to a malicious gateway.
The vulnerability has been reported in version 4.91. Other versions may also be vulnerable.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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