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[email protected]CVE-2021-40118

HistoryOct 27, 2021 - 7:15 p.m.

CVE-2021-40118

2021-10-2719:15:08

CWE-787

CWE-121

[email protected]

web.nvd.nist.gov

cisco

asa

ftd

software

vulnerability

remote attack

dos

https

nvd

cve-2021-40118

7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

57.2%

JSON

A vulnerability 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. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability 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.

Affected configurations

NVD

Node

ciscoadaptive_security_applianceRange<9.8.4.40

ciscofirepower_threat_defenseRange<6.4.0.13

ciscofirepower_threat_defenseRange6.5.0–6.6.5

ciscofirepower_threat_defenseRange6.7.0–6.7.0.3

ciscofirepower_threat_defenseRange7.0.0–7.0.1

ciscoadaptive_security_appliance_softwareRange9.9.0–9.12.4.29

ciscoadaptive_security_appliance_softwareRange9.13.0–9.14.3.9

ciscoadaptive_security_appliance_softwareRange9.15.0–9.15.1.17

ciscoadaptive_security_appliance_softwareRange9.16.0–9.16.2.3

Node

ciscoasa_5512-x_firmwareMatch009.012\(004.024\)

ciscoasa_5512-x_firmwareMatch009.015\(001\)

ciscoasa_5512-x_firmwareMatch009.015\(001.015\)

ciscoasa_5512-x_firmwareMatch009.015\(001.016\)

ciscoasa_5512-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5512-xMatch-

Node

ciscoasa_5505_firmwareMatch009.012\(004.024\)

ciscoasa_5505_firmwareMatch009.015\(001\)

ciscoasa_5505_firmwareMatch009.015\(001.015\)

ciscoasa_5505_firmwareMatch009.015\(001.016\)

ciscoasa_5505_firmwareMatch009.016\(001\)

AND

ciscoasa_5505Match-

Node

ciscoasa_5515-x_firmwareMatch009.012\(004.024\)

ciscoasa_5515-x_firmwareMatch009.015\(001\)

ciscoasa_5515-x_firmwareMatch009.015\(001.015\)

ciscoasa_5515-x_firmwareMatch009.015\(001.016\)

ciscoasa_5515-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5515-xMatch-

Node

ciscoasa_5525-x_firmwareMatch009.012\(004.024\)

ciscoasa_5525-x_firmwareMatch009.015\(001\)

ciscoasa_5525-x_firmwareMatch009.015\(001.015\)

ciscoasa_5525-x_firmwareMatch009.015\(001.016\)

ciscoasa_5525-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5525-xMatch-

Node

ciscoasa_5545-x_firmwareMatch009.012\(004.024\)

ciscoasa_5545-x_firmwareMatch009.015\(001\)

ciscoasa_5545-x_firmwareMatch009.015\(001.015\)

ciscoasa_5545-x_firmwareMatch009.015\(001.016\)

ciscoasa_5545-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5545-xMatch-

Node

ciscoasa_5555-x_firmwareMatch009.012\(004.024\)

ciscoasa_5555-x_firmwareMatch009.015\(001\)

ciscoasa_5555-x_firmwareMatch009.015\(001.015\)

ciscoasa_5555-x_firmwareMatch009.015\(001.016\)

ciscoasa_5555-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5555-xMatch-

Node

ciscoasa_5580_firmwareMatch009.012\(004.024\)

ciscoasa_5580_firmwareMatch009.015\(001\)

ciscoasa_5580_firmwareMatch009.015\(001.015\)

ciscoasa_5580_firmwareMatch009.015\(001.016\)

ciscoasa_5580_firmwareMatch009.016\(001\)

AND

ciscoasa_5580Match-

Node

ciscoasa_5585-x_firmwareMatch009.012\(004.024\)

ciscoasa_5585-x_firmwareMatch009.015\(001\)

ciscoasa_5585-x_firmwareMatch009.015\(001.015\)

ciscoasa_5585-x_firmwareMatch009.015\(001.016\)

ciscoasa_5585-x_firmwareMatch009.016\(001\)

AND

ciscoasa_5585-xMatch-

CPENameOperatorVersion
cisco:adaptive_security_appliancecisco adaptive security appliancelt9.8.4.40
cisco:firepower_threat_defensecisco firepower threat defenselt6.4.0.13
cisco:firepower_threat_defensecisco firepower threat defenselt6.6.5
cisco:firepower_threat_defensecisco firepower threat defenselt6.7.0.3
cisco:firepower_threat_defensecisco firepower threat defenselt7.0.1
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.12.4.29
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.14.3.9
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.15.1.17
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.16.2.3

CPE	Name	Operator	Version
cisco:adaptive_security_appliance	cisco adaptive security appliance	lt	9.8.4.40
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.4.0.13
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.6.5
cisco:firepower_threat_defense	cisco firepower threat defense	lt	6.7.0.3
cisco:firepower_threat_defense	cisco firepower threat defense	lt	7.0.1
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.12.4.29
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.14.3.9
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.15.1.17
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.16.2.3

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software ",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asafdt-webvpn-dos-KSqJAKPA

7.1 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

0.002 Low

EPSS

Percentile

57.2%

JSON

Related for CVE-2021-40118

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