CVE-2021-34781

Sažetak

A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability is due to a lack of proper error handling when an SSH session fails to be established. An attacker could exploit this vulnerability by sending a high rate of crafted SSH connections to the instance. A successful exploit could allow the attacker to cause resource exhaustion, which causes a DoS condition on the affected device. The device must be manually reloaded to recover.

Reference

CVSS

Base:	7.1
Impact:	6.9
Exploitability:	8.6

Pristup

Vektor	Složenost	Autentikacija
NETWORK	MEDIUM	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
NONE	NONE	COMPLETE

CVSS vektor

AV:N/AC:M/Au:N/C:N/I:N/A:C

Zadnje važnije ažuriranje

07-11-2023 - 03:36

Objavljeno

27-10-2021 - 19:15