Podatność CVE-2021-40116


Publikacja: 2021-10-27

Opis:
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.

Typ:

NVD-CWE-noinfo

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:C)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
7.1/10
6.9/10
8.6/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Średnia
Nie wymagana
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Brak
Brak
Pełny
Affected software
Snort -> Snort 
Cisco -> Firepower management center 
Cisco -> Firepower threat defense 

 Referencje:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-RywH7ezM

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