用hetzner的瞧瞧看德国联邦给我发消息了 - 全球主机交流论坛

We received a security alert from the German Federal Office for Information Security (BSI).
Please see the original report included below for details.
Please investigate and solve the reported issue.
It is not required that you reply to either us or the BSI.
If the issue has been fixed successfully, you should not receive any further notifications.
Do not reply as this is just the sender address for the
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Kind regards
Abuse team
On 11 Apr 16:23, * wrote:
> Dear Sir or Madam,
>
> the Portmapper service (portmap, rpcbind) is required for mapping RPC
> requests to a network service. The Portmapper service is needed e.g.
> for mounting network shares using the Network File System (NFS).
> The Portmapper service runs on port 111 tcp/udp.
>
> In addition to being abused for DDoS reflection attacks, the
> Portmapper service can be used by attackers to obtain information
> on the target network like available RPC services or network shares.
>
> Over the past months, systems responding to Portmapper requests from
> anywhere on the Internet have been increasingly abused DDoS reflection
> attacks against third parties.
>
> Affected systems on your network:
>
> Format: ASN | IP | Timestamp (UTC) | RPC response
> 24940 | 略 | 2018-04-10 04:10:47 | 100000 2 111/udp; 100000 2 111/udp; 100024 1 43825/udp; 100024 1 44865/udp;
>
> We would like to ask you to check this issue and take appropriate
> steps to secure the Portmapper services on the affected systems or
> notify your customers accordingly.
>
> If you have recently solved the issue but received this notification
> again, please note the timestamp included below. You should not
> receive any further notifications with timestamps after the issue
> has been solved.
>
> Additional information on this notification, advice on how to fix
> reported issues and answers to frequently asked questions:
> <https://reports.cert-bund.de/en/>
>
> This message is digitally signed using PGP.
> Information on the signature key is available at:
>

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