Detections
Analytics

Cisco Firepower Threat Defense Snort Memory Leak DoS (cisco-sa-snort-dos-s2R7W9UU)

high Nessus Plugin ID 161866

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco FTD Software is affected by a denial of service vulnerability. A denial of service (DoS) vulnerability exists in the way the Snort detection engine processes ICMP traffic. An unauthenticated, remote attacker can exploit this issue by sending a series of ICMP packets which can cause the device to stop responding.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco security advisory.

See Also

http://www.nessus.org/u?3be003ee

https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74773

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt57503

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx29001

Plugin Details

Severity: High

ID: 161866

File Name: cisco-sa-snort-dos-s2R7W9UU-ftd.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 6/6/2022

Updated: 6/7/2022

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2021-40114

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:firepower_threat_defense

Required KB Items: Settings/ParanoidReport, installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2021

Vulnerability Publication Date: 10/27/2021

Reference Information

CVE: CVE-2021-40114