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Cisco Adaptive Security Appliance Software Release 9.16.1 and Cisco Firepower Threat Defense Software Release 7.0.0 IPsec Denial of Service Vulnerability

cisco-sa-asa-ftd-ipsec-dos-TFKQbgWC · High · Published · Updated

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-ipsec-dos-TFKQbgWC

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2021-1422
Cisco Bug IDsCSCvy66711
CVSS ScoreBase 7.7
Base 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Adaptive Security Appliance (ASA) Software 9.16.1, Cisco Firepower Threat Defense Software 7.0.0, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco Firepower 2100 Series, Cisco Firepower 1000 Series, Cisco Firepower 9000 Series, Cisco Firepower 4100 Series, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Secure Firewall Threat Defense Virtual

Related Products

Product CVE Evidence
Cisco Secure Firewall Threat Defense Virtual CVE-2021-1422 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2021-1422 Cisco OpenVuln
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software CVE-2021-1422 Cisco OpenVuln
Cisco Firepower Threat Defense Software CVE-2021-1422 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2021-1422 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2021-1422 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2021-1422 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2021-1422 Cisco OpenVuln
Cisco Adaptive Security Virtual Appliance (ASAv) CVE-2021-1422 Cisco OpenVuln
Cisco Adaptive Security Appliance (ASA) Software CVE-2021-1422 Cisco OpenVuln