CVE-2020-8349: Code Injection
An internal security review has identified an unauthenticated remote code execution vulnerability in Cloud Networking Operating System (CNOS)’ optional REST API management interface. This interface is disabled by default and not vulnerable unless enabled. When enabled, it is only vulnerable where attached to a VRF and as allowed by defined ACLs. Lenovo strongly recommends upgrading to a non-vulnerable CNOS release. Where not possible, Lenovo recommends disabling the REST API management interface or restricting access to the management VRF and further limiting access to authorized management stations via ACL.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2020-8349?
CVE-2020-8349 is classified as a high severity vulnerability due to its potential for unauthenticated remote code execution.
How do I fix CVE-2020-8349?
To mitigate CVE-2020-8349, ensure that the optional REST API management interface is disabled if not in use.
Which systems are affected by CVE-2020-8349?
CVE-2020-8349 affects the Lenovo Cloud Networking Operating System versions prior to 10.10.6.0 when the optional REST API is enabled.
Is CVE-2020-8349 exploitability possible without enabling the API?
No, CVE-2020-8349 is not exploitable unless the REST API management interface is enabled.
Can CVE-2020-8349 impact devices other than Lenovo Cloud Networking Operating System?
CVE-2020-8349 specifically affects the Lenovo Cloud Networking Operating System and does not impact the listed Rackswitch models.