| Vulnerability Name: | CVE-2022-20821 (CCN-227030) | ||||||||||||
| Assigned: | 2021-11-02 | ||||||||||||
| Published: | 2022-05-20 | ||||||||||||
| Updated: | 2022-06-07 | ||||||||||||
| Summary: | A vulnerability in the health check RPM of Cisco IOS XR Software could allow an unauthenticated, remote attacker to access the Redis instance that is running within the NOSi container. This vulnerability exists because the health check RPM opens TCP port 6379 by default upon activation. An attacker could exploit this vulnerability by connecting to the Redis instance on the open port. A successful exploit could allow the attacker to write to the Redis in-memory database, write arbitrary files to the container filesystem, and retrieve information about the Redis database. Given the configuration of the sandboxed container that the Redis instance runs in, a remote attacker would be unable to execute remote code or abuse the integrity of the Cisco IOS XR Software host system. | ||||||||||||
| CVSS v3 Severity: | 6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N) 5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
| ||||||||||||
| CVSS v2 Severity: | 6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
| ||||||||||||
| Vulnerability Type: | CWE-200 | ||||||||||||
| Vulnerability Consequences: | Bypass Security | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2022-20821 Source: XF Type: UNKNOWN cisco-cve202220821-sec-bypass(227030) Source: CCN Type: Cisco Security Advisory cisco-sa-iosxr-redis-ABJyE5xK Cisco IOS XR Software Health Check Open Port Vulnerability Source: CISCO Type: Vendor Advisory 20220520 Cisco IOS XR Software Health Check Open Port Vulnerability | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Denotes that component is vulnerable | ||||||||||||
| BACK | |||||||||||||