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Cisco Bug: CSCun31021 - IKEv1 unauthorized/not finished Phase 1 tears down different one

Last Modified

Nov 27, 2020

Products (1)

  • Cisco 2600 Series Multiservice Platforms

Known Affected Releases


Description (partial)

A vulnerability in IKE module of Cisco IOS and Cisco IOS XE could allow an unauthenticated, remote attacker to affect already established Security 
Associations (SA)..

The vulnerability is due to a wrong handling of rogue IKE Main Mode packets. An attacker could exploit this vulnerability by sending a crafted Main 
Mode packet to an affected device. An exploit could allow the attacker to cause dropping of valid, established IKE Security Associations on an affected 

Device configured to process IKE request that already has a number of established security associations.
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Bug Details Include

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  • Status
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