Cisco Adaptive Security Appliance Software DoS (cisco-sa-asaftd-dos-QFcNEPfx)

high Nessus Plugin ID 149312

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, the TCP packet processing of Cisco Adaptive Security Appliance Software is affected by denial of service vulnerability due to a memory exhaustion condition. An unauthenticated, remote attacker can exploit this by sending a high rate of crafted TCP traffic through an affected device. A successful exploit could allow the attacker to exhaust device resources, resulting in a DoS condition for traffic transiting the affected device.

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt35897

See Also

http://www.nessus.org/u?4e0b20a5

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74302

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt35897

Plugin Details

Severity: High

ID: 149312

File Name: cisco-sa-asaftd-dos-QFcNEPfx-asa.nasl

Version: 1.7

Type: local

Family: CISCO

Published: 5/6/2021

Updated: 3/31/2023

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-2020-3554

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:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-3554

CWE: 400

CISCO-SA: cisco-sa-asaftd-dos-QFcNEPfx

IAVA: 2020-A-0488-S

CISCO-BUG-ID: CSCvt35897