Cisco Adaptive Security Appliance Software Web Services Multiple DoS (cisco-sa-asafdt-webvpn-dos-KSqJAKPA)

high Nessus Plugin ID 154726

Language:

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco ASA Software is affected by multiple vulnerabilities.

- Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. These vulnerabilities are due to improper input validation when parsing HTTPS requests. An attacker could exploit these vulnerabilities by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. (CVE-2021-40118)

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvy36910, CSCvy58278, CSCvy89144

Plugin Details

Severity: High

ID: 154726

File Name: cisco-sa-asa-ftd-webvpn-dos-KSqJAKPA-asa.nasl

Version: 1.9

Type: local

Family: CISCO

Published: 10/29/2021

Updated: 6/7/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-40118

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/27/2021

Vulnerability Publication Date: 10/27/2021

Reference Information

CVE: CVE-2021-1573, CVE-2021-34704, CVE-2021-40118

CWE: 121, 234, 787

CISCO-SA: cisco-sa-asafdt-webvpn-dos-KSqJAKPA

IAVA: 2021-A-0508-S

CISCO-BUG-ID: CSCvy36910, CSCvy58278, CSCvy89144

Detections

Analytics