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CVE-2021-40116 Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote…

Description

Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.

Produits et versions touchés

Produit	Versions touchées	Corrigé en
Cisco Firepower Threat Defense Software	Versions non publiées

Références

20211027 Multiple Cisco Products Snort Rule Denial of Service Vulnerability tools.cisco.com

Chronologie

Publiée 27 octobre 2021
Dernière modification 7 novembre 2024

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