CVE-2021-34792

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

Last Modified on: 10/24/2022 02:19:00 PM UTC

CVE-2021-34792 - advisory for cisco-sa-asa-ftd-dos-Unk689XY

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 the memory management of Cisco Adaptive Security Appliance (ASA) Software and 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 is due to improper resource management when connection rates are high. An attacker could exploit this vulnerability by opening a significant number of connections on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

  • CVE-2021-34792 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 Resource Exhaustion Denial of Service Vulnerability tools.cisco.com
text/html
 URL Logo CISCO 20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Resource Exhaustion Denial of Service Vulnerability
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Related QID Numbers

  • 317089 Cisco Adaptive Security Appliance (ASA) Software Denial of Service (DoS) Vulnerability ( cisco-sa-asa-ftd-dos-Unk689XY)
  • 317095 Cisco Firepower Threat Defense (FTD) Software Resource Exhaustion Denial of Service (DoS) Vulnerability (cisco-sa-asa-ftd-dos-Unk689XY)

Exploit/POC from Github

A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Def…

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 Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5505 Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5505 Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5505 Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5512-x-AllAllAll
Operating
System		CiscoAsa 5512-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5512-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5512-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5512-x Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5515-x-AllAllAll
Operating
System		CiscoAsa 5515-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5515-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5515-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5515-x Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5525-x-AllAllAll
Operating
System		CiscoAsa 5525-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5525-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5525-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5525-x Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5545-x-AllAllAll
Operating
System		CiscoAsa 5545-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5545-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5545-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5545-x Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5555-x-AllAllAll
Operating
System		CiscoAsa 5555-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5555-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5555-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5555-x Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5580-AllAllAll
Operating
System		CiscoAsa 5580 Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5580 Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5580 Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5580 Firmware099.017\(015.050\)AllAllAll
Hardware Device InfoCiscoAsa 5585-x-AllAllAll
Operating
System		CiscoAsa 5585-x Firmware009.014\(001.150\)AllAllAll
Operating
System		CiscoAsa 5585-x Firmware099.017\(001.211\)AllAllAll
Operating
System		CiscoAsa 5585-x Firmware099.017\(001.220\)AllAllAll
Operating
System		CiscoAsa 5585-x Firmware099.017\(015.050\)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:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5505_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5505_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5505_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5512-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5515-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5525-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5545-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5555-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5580_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(001.150\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(001.211\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(001.220\):*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:asa_5585-x_firmware:099.017\(015.050\):*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-34792 : A vulnerability in the memory management of Cisco Adaptive Security Appliance ASA Software and… twitter.com/i/web/status/1… 2021-10-27 19:10:23
Twitter Icon @softek_jp Cisco ASA Software のメモリ管理の処理にサービスを妨害される問題 (CVE-2021-34792) [40368] sid.softek.jp/content/show/4… #SIDfm #脆弱性情報 2021-10-29 04:30:51
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