CVE-2021-1422

Published on: 07/16/2021 12:00:00 AM UTC

Last Modified on: 05/31/2022 12:08:00 PM UTC

CVE-2021-1422 - advisory for cisco-sa-asa-ftd-ipsec-dos-TFKQbgWC

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

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

A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker or an unauthenticated attacker in a man-in-the-middle position to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error in how the software cryptography module handles specific types of decryption errors. An attacker could exploit this vulnerability by sending malicious packets over an established IPsec connection. A successful exploit could cause the device to crash, forcing it to reload. Important: Successful exploitation of this vulnerability would not cause a compromise of any encrypted data. Note: This vulnerability affects only Cisco ASA Software Release 9.16.1 and Cisco FTD Software Release 7.0.0.

  • CVE-2021-1422 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • The Cisco Product Security Incident Response Team (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: 7.7 - HIGH

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

CVSS2 Score: 6.8 - MEDIUM

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

CVE References

Description Tags Link
Cisco Adaptive Security Appliance Software Release 9.16.1 and Cisco Firepower Threat Defense Software Release 7.0.0 IPsec Denial of Service Vulnerability tools.cisco.com
text/html
URL Logo CISCO 20210715 Cisco Adaptive Security Appliance Software Release 9.16.1 and Cisco Firepower Threat Defense Software Release 7.0.0 IPsec Denial of Service Vulnerability

Related QID Numbers

  • 316998 Cisco Adaptive Security Appliance Software Release 9.16.1 IPsec Denial of Service Vulnerability(cisco-sa-asa-ftd-ipsec-dos-TFKQbgWC)
  • 316999 Cisco Firepower Threat Defense Software Release 7.0.0 IPsec Denial of Service Vulnerability(cisco-sa-asa-ftd-ipsec-dos-TFKQbgWC)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
CiscoAdaptive Security Appliance Software9.16.1AllAllAll
ApplicationCiscoAdaptive Security Virtual Appliance-AllAllAll
Hardware Device InfoCiscoAdaptive Security Virtual Appliance-AllAllAll
Hardware Device InfoCiscoFirepower 2100-AllAllAll
Hardware Device InfoCiscoFirepower 2110-AllAllAll
Hardware Device InfoCiscoFirepower 2120-AllAllAll
Hardware Device InfoCiscoFirepower 2130-AllAllAll
Hardware Device InfoCiscoFirepower 2140-AllAllAll
Operating
System
CiscoFirepower Threat Defense7.0.0.0AllAllAll
Hardware Device InfoCiscoFtd Virtual-AllAllAll
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:9.16.1:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:adaptive_security_virtual_appliance:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:adaptive_security_virtual_appliance:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2100:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:firepower_threat_defense:7.0.0.0:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:ftd_virtual:-:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-1422 : A vulnerability in the software cryptography module of Cisco Adaptive Security Appliance ASA So… twitter.com/i/web/status/1… 2021-07-16 12:30:03
Twitter Icon @autumn_good_35 CVE-2021-1422 Cisco Adaptive Security Appliance Software Release 9.16.1 and Cisco Firepower Threat Defense Software… twitter.com/i/web/status/1… 2021-07-16 14:25:50
Reddit Logo Icon /r/netcve CVE-2021-1422 2021-07-16 12:41:09
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