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Internet Key Exchange (IKE) Aggressive Mode Information Disclosure Vulnerability (CVE-2002-1623)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Internet Key Exchange (IKE) protocol enabled services running in / supporting the aggressive mode are prone to an information disclosure vulnerability.
Insight
Insight
The design of the IKE protocol, when using Aggressive Mode for shared secret authentication (PSK), does not encrypt initiator or responder identities during negotiation. Please see the references for more technical / background info.
Affected Software
Affected Software
Internet Key Exchange (IKE) protocol enabled services running in / supporting the aggressive mode with Pre-Shared Key (PSK) authentication enabled might be affected.
Detection Method
Detection Method
Sends IKE aggressive mode connection requests with Pre-Shared Key (PSK) authentication enabled and checks the response.
Solution
Solution
Use an alternative mode and authentication method. The IKE protocol provides many options for both connection mode and authentication method, several combinations provide identity protection. For example, both Main Mode with shared secret authentication and Aggressive Mode with public key authentication provide identity protection.