CVE-2022-20767
Summary
| CVE | CVE-2022-20767 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2022-05-03 04:15:00 UTC |
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| Updated | 2023-11-07 03:42:00 UTC |
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| Description | A vulnerability in the Snort rule evaluation function of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of the DNS reputation enforcement rule. An attacker could exploit this vulnerability by sending crafted UDP packets through an affected device to force a buildup of UDP connections. A successful exploit could allow the attacker to cause traffic that is going through the affected device to be dropped, resulting in a DoS condition. Note: This vulnerability only affects Cisco FTD devices that are running Snort 3. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
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| 20220427 Cisco Firepower Threat Defense Software DNS Enforcement Denial of Service Vulnerability |
CISCO |
tools.cisco.com |
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| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 317175 Cisco Firepower Threat Defense (FTD) Software Domain Name System (DNS) Enforcement Denial of Service (DoS) Vulnerability (cisco-sa-FTD-snort3-DOS-Aq38LVdM)
