CVE-2022-20760
Published May 3, 2022
Last updated a year ago
Overview
- Description
- 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.
- Source
- ykramarz@cisco.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 7.8
- Impact score
- 6.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:C
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35AD28D3-1C08-44EF-9148-371C9E7912E5",
"versionEndExcluding": "6.4.0.15"
},
{
"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CD7675E1-AE0A-4C69-915D-144597F1250E",
"versionEndExcluding": "6.6.5.2",
"versionStartIncluding": "6.5.0"
},
{
"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "536C9927-B64A-4959-BE92-9F2665AEA811",
"versionEndExcluding": "7.0.2",
"versionStartIncluding": "7.0.0"
},
{
"criteria": "cpe:2.3:a:cisco:firepower_threat_defense:7.1.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D619BF54-1BA9-45D0-A876-92D7010088A0"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "66C2579F-1E8B-4FB1-AA40-B164F4F2BBED",
"versionEndExcluding": "9.12.4.38"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FFE84A5D-FFD6-4A82-BDFA-367D29625300",
"versionEndExcluding": "9.14.4",
"versionStartIncluding": "9.13.0"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7B120E68-DA48-4B87-A549-6BA7009C056D",
"versionEndExcluding": "9.15.1.21",
"versionStartIncluding": "9.15.0"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "99DD72E2-E389-453E-8A99-1B633C4E2AE3",
"versionEndExcluding": "9.16.2.14",
"versionStartIncluding": "9.16.0"
},
{
"criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "573E61F7-8311-4095-BD75-8F3D3E2499E5",
"versionEndExcluding": "9.17.1.7",
"versionStartIncluding": "9.17.0"
}
],
"operator": "OR"
}
]
}
]