CVE-2022-20821 - Design/Logic Flaw
Original CVE data
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.
Cisco - (1)
Common vulnerability metrics
Vulnerability weakness type is in the top 25 CWEs according to MITRE. View Mitre Top 25 CWEs
Exploits are available either through exploit packs, Github repos or the world wide web in general.
Vulnerability is referenced under CISA's Known Exploited Vulnerabilities (KEV) catalog. See the KEV Catalog
Vulnerability is mentioned or trending in social media.
Vulnerability is being actively exploited by threat actors during campaigns.
How the vulnerability maps against various cybersecurity frameworks
How the submited vulnerability affects compliance
Web Application Security Frameworks
Applicable if the issue likely affects a web application