CVE-2021-40117

Published on: 10/27/2021 12:00:00 AM UTC

Last Modified on: 10/29/2021 01:41:00 PM UTC

CVE-2021-40117 - advisory for cisco-sa-asaftd-dos-4ygzLKU9

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Certain versions of Adaptive Security Appliance from Cisco contain the following vulnerability:

A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

  • CVE-2021-40117 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Adaptive Security Appliance (ASA) Software version n/a

CVSS3 Score: 7.5 - HIGH

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED NONE NONE HIGH

CVSS2 Score: 7.8 - HIGH

Access
Vector ⓘ		 Access
Complexity		 Authentication
NETWORK LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
NONE NONE COMPLETE

CVE References

Description Tags ⓘ Link
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Denial of Service Vulnerability tools.cisco.com
text/html
 URL Logo CISCO 20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Denial of Service Vulnerability
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Related QID Numbers

  • 317091 Cisco Adaptive Security Appliance Software (ASA) SSL/TLS Denial of Service (DoS) Vulnerability (cisco-sa-asaftd-dos-4ygzLKU9)
  • 317092 Cisco Firepower Threat Defense (FTD) Software Secure Sockets Layer/Transport Layer Security (SSL/TLS Denial of Service (DoS) Vulnerability (cisco-sa-asaftd-dos-4ygzLKU9)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCiscoAdaptive Security ApplianceAllAllAllAll
Hardware Device InfoCiscoAsa 5505-AllAllAll
Operating
System		CiscoAsa 5505 Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5505 Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5512-x-AllAllAll
Operating
System		CiscoAsa 5512-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5512-x Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5515-x-AllAllAll
Operating
System		CiscoAsa 5515-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5515-x Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5525-x-AllAllAll
Operating
System		CiscoAsa 5525-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5525-x Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5545-x-AllAllAll
Operating
System		CiscoAsa 5545-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5545-x Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5555-x-AllAllAll
Operating
System		CiscoAsa 5555-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5555-x Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5580-AllAllAll
Operating
System		CiscoAsa 5580 Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5580 Firmware009.014\(002.106\)AllAllAll
Hardware Device InfoCiscoAsa 5585-x-AllAllAll
Operating
System		CiscoAsa 5585-x Firmware009.009\(002.085\)AllAllAll
Operating
System		CiscoAsa 5585-x Firmware009.014\(002.106\)AllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
  • cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5505_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5505_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:009.009\(002.085\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(002.106\):*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-40117 : A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance ASA Software… twitter.com/i/web/status/1… 2021-10-27 19:12:15
Twitter Icon @SecRiskRptSME RT: CVE-2021-40117 A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software… twitter.com/i/web/status/1… 2021-10-28 07:33:55
Twitter Icon @softek_jp Cisco ASA Software の SSL/TLS メッセージハンドラの処理にサービスを妨害される問題 (CVE-2021-40117) [40366] sid.softek.jp/content/show/4… #SIDfm #脆弱性情報 2021-10-29 04:30:50
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