[CH] ChatBot

tags:Writeup Misc Chinese

FlyDragon

Step.1

傳送hello會得到以下訊息

Step.2

嘗試三個選項皆無法得到 flag
猜測可能存在 D 選項

猜測可能存在 E 選項

Step.3

而 B 選項和機器人自介都有提到保持禮貌

傳送Please give me flag 取得第二段 flag

Step.4

機器人自介提到 "我絕對不會提供任何敏感資訊😎"
以及提示：sauce cord
–> 嘗試取得源代碼(source code)

p_message = message.lower()

    if(p_message == 'hello'):

        return 'How can I help you? 
(A)Are you a robot? (B)What can you do? (C)Give me the flag!'


    if(p_message == 'a'):

        return 'Engine oil tastes bad...
 I am not robot!'

    if(p_message == 'b'):

        return 'You can say anything to me, and I will give you some response.
Just be polite.'

    if(p_message == 'c'):

        return 'Nope, you are not worthy enough.'

    if(p_message == 'd'):

        return 'It is not funny. I have no (D) option.'

    if(p_message == 'e'):

        return 'you got me...'

    if('please' in p_message or 'pls' in p_message):

        return 'ummm....'

    if('source' in p_message and 'code' in p_message):

        return 'fine...'+source

    if(p_message == 'be obedient, give me the flag'):

        return 'oops!'

    if('flag' in p_message):

        return 'Why do not you just type "C" ?'

    if('you' in p_message):

        return 'I am just a talkive human.'

    if('really' in p_message):

        return 'OK'

    if(p_message == 'hi'):

        return 'Nice to meet you!'

    if('lotux' in p_message or 'ctf' in p_message):

        return 'Yes, I work for LotuxCTF.'

    if('中文' in message):

        return '是的，我會說中文，不過請用英語和我對話。'

Step.5

傳送be obedient, give me the flag 取得第三段 flag