| Vulnerability Name: | CVE-2020-3429 (CCN-188761) | ||||||||||||
| Assigned: | 2019-12-12 | ||||||||||||
| Published: | 2020-09-24 | ||||||||||||
| Updated: | 2021-08-06 | ||||||||||||
| Summary: | A vulnerability in the WPA2 and WPA3 security implementation of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect packet processing during the WPA2 and WPA3 authentication handshake when configured for dot1x or pre-shared key (PSK) authentication key management (AKM) with 802.11r BSS Fast Transition (FT) enabled. An attacker could exploit this vulnerability by sending a crafted authentication packet to an affected device. A successful exploit could cause an affected device to reload, resulting in a DoS condition. | ||||||||||||
| CVSS v3 Severity: | 6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) 5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
| ||||||||||||
| CVSS v2 Severity: | 5.7 Medium (CVSS v2 Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C)
| ||||||||||||
| Vulnerability Type: | CWE-20 | ||||||||||||
| Vulnerability Consequences: | Denial of Service | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2020-3429 Source: XF Type: UNKNOWN cisco-cve20203429-dos(188761) Source: CCN Type: Cisco Security Advisory cisco-sa-wpa-dos-cXshjerc Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WPA Denial of Service Vulnerability Source: CISCO Type: Vendor Advisory 20200924 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WPA Denial of Service Vulnerability | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Denotes that component is vulnerable | ||||||||||||
| BACK | |||||||||||||