Vulnerability Monitor

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CVE-2022-20760

A vulnerability in the DNS inspection handler 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 condition (DoS) on an affected device. This vulnerability is due to a lack of proper processing of incoming requests. An attacker could exploit this vulnerability by sending crafted DNS requests at a high rate to an affected device. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a DoS condition.

Published

2022-05-03T04:15:09.893

Last Modified

2024-11-21T06:43:29.897

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense < 6.4.0.15 Yes
Application cisco firepower_threat_defense < 6.6.5.2 Yes
Application cisco firepower_threat_defense < 7.0.2 Yes
Application cisco firepower_threat_defense 7.1.0 Yes
Operating System cisco adaptive_security_appliance_software < 9.12.4.38 Yes
Operating System cisco adaptive_security_appliance_software < 9.14.4 Yes
Operating System cisco adaptive_security_appliance_software < 9.15.1.21 Yes
Operating System cisco adaptive_security_appliance_software < 9.16.2.14 Yes
Operating System cisco adaptive_security_appliance_software < 9.17.1.7 Yes
References