The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4510-1 advisory.

    Tom Tervoort discovered that the Netlogon protocol implemented by Samba incorrectly handled the     authentication scheme. A remote attacker could use this issue to forge an authentication token and steal     the credentials of the domain admin.

    This update fixes the issue by changing the server schannel setting to default to yes, instead of     auto, which will force a secure netlogon channel. This may result in compatibility issues with older     devices. A future update may allow a finer-grained control over this setting.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Detections

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Ubuntu 16.04 LTS / 18.04 LTS : Samba vulnerability (USN-4510-1)

medium Nessus Plugin ID 140640

Version 1.14