CVE-2020-8349: Code Injection
First published: Wed Oct 14 2020(Updated: )
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.
Credit: psirt@lenovo.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lenovo Cloud Networking Operating System | <10.10.6.0 | |
| Lenovo Rackswitch G8272 | ||
| Lenovo Rackswitch G8296 | ||
| Lenovo Rackswitch G8332 | ||
| Lenovo Rackswitch Ne0152t | ||
| Lenovo Rackswitch Ne10032 | ||
| Lenovo Rackswitch Ne1032 | ||
| Lenovo Rackswitch Ne1032t | ||
| Lenovo Rackswitch Ne1072t | ||
| Lenovo Rackswitch Ne2572 |
Remedy
Upgrade to the CNOS version 10.10.6.0 or later.
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Reference Links
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.
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- agent/weakness
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- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/author
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- vendor/lenovo
- canonical/lenovo cloud networking operating system
- canonical/lenovo rackswitch g8272
- canonical/lenovo rackswitch g8296
- canonical/lenovo rackswitch g8332
- canonical/lenovo rackswitch ne0152t
- canonical/lenovo rackswitch ne10032
- canonical/lenovo rackswitch ne1032
- canonical/lenovo rackswitch ne1032t
- canonical/lenovo rackswitch ne1072t
- canonical/lenovo rackswitch ne2572