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用hetzner的瞧瞧看德国联邦给我发消息了

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用hetzner的瞧瞧看德国联邦给我发消息了

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alan_1019

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2018-4-12 01:26:26 | 显示全部楼层 |阅读模式
本帖最后由 alan_1019 于 2018-4-12 01:29 编辑



我个龟龟哎,刚刚收到消息吓一跳因为又干啥子了~~要封机了~~结果没事只是警告一下,看你们拿hetzner去开站的mjj最好小心点



我是特价杜普

以下是邮件原文,部分内容以删:
[ol]
  • 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
  • reports and messages sent to this address will not be read.
  • 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:
  • >  
  • > This message is digitally signed using PGP.
  • > Information on the signature key is available at:
  • > [/ol]复制代码
    顺便看看这是多大的量看不明白~

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    domin

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    2018-4-12 01:31:21 | 显示全部楼层
    是你的机器被利用作反射攻击了.
    111 NFS portmap端口.
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    alan_1019 楼主

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    2018-4-12 01:33:49 | 显示全部楼层

    domin 发表于 2018-4-12 01:31

    是你的机器被利用作反射攻击了.
    111 NFS portmap端口.



    原来如此有什么防护方法?直接封端口?
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    2018-4-12 01:31:00 | 显示全部楼层
    嗯. 封端口
    UDP 111
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    2018-4-12 01:35:31 | 显示全部楼层
    /etc/init.d/rpcbind* stop
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    2018-4-12 04:08:41 | 显示全部楼层
    自己的问题,禁用想关服务,封上端口就完了
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