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hacktricks/pentesting-web/xss-cross-site-scripting/chrome-cache-to-xss.md

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# Chrome Cache to XSS
{% hint style="success" %}
Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
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<details>
<summary>Support HackTricks</summary>
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* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
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</details>
{% endhint %}
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Maelezo ya kina zaidi [**katika andiko hili**](https://blog.arkark.dev/2022/11/18/seccon-en/#web-spanote).
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Teknolojia inayozungumziwa hapa inahusisha kuelewa tabia na mwingiliano wa aina mbili kuu za cache: **back/forward cache (bfcache)** na **disk cache**. Bfcache, ambayo inahifadhi picha kamili ya ukurasa ikiwa ni pamoja na JavaScript heap, inapewa kipaumbele juu ya disk cache kwa ajili ya urambazaji wa nyuma/mbele kutokana na uwezo wake wa kuhifadhi picha kamili zaidi. Disk cache, kinyume chake, inahifadhi rasilimali zilizopatikana kutoka mtandao bila kujumuisha JavaScript heap, na inatumika kwa urambazaji wa nyuma/mbele ili kupunguza gharama za mawasiliano. Kipengele cha kuvutia cha disk cache ni kujumuisha rasilimali zilizopatikana kwa kutumia `fetch`, ikimaanisha rasilimali za URL zilizofikiwa zitaonyeshwa na kivinjari kutoka kwenye cache.
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### Mambo Muhimu:
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- **bfcache** ina kipaumbele juu ya disk cache katika urambazaji wa nyuma/mbele.
- Ili kutumia ukurasa uliohifadhiwa kwenye disk cache badala ya bfcache, bfcache inapaswa kuzuiliwa.
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### Kuzuilia bfcache:
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Kwa kawaida, Puppeteer inazuilia bfcache, ikilingana na masharti yaliyoorodheshwa katika nyaraka za Chromium. Njia moja yenye ufanisi ya kuzuilia bfcache ni kupitia matumizi ya `RelatedActiveContentsExist`, ambayo inapatikana kwa kufungua ukurasa kwa kutumia `window.open()` ambayo inahifadhi rejeleo kwa `window.opener`.
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### Kurejesha tabia:
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1. Tembelea ukurasa wa wavuti, mfano, `https://example.com`.
2. Teua `open("http://spanote.seccon.games:3000/api/token")`, ambayo inasababisha jibu la seva lenye msimbo wa hali 500.
3. Katika tab mpya iliyofunguliwa, tembelea `http://spanote.seccon.games:3000/`. Kitendo hiki kinahifadhi jibu la `http://spanote.seccon.games:3000/api/token` kama disk cache.
4. Tumia `history.back()` kurudi nyuma. Kitendo hiki kinapelekea kuonyeshwa kwa jibu la JSON lililohifadhiwa kwenye ukurasa.
Uthibitisho kwamba disk cache ilitumika unaweza kuthibitishwa kupitia matumizi ya DevTools katika Google Chrome.
Kwa maelezo zaidi kuhusu bfcache na disk cache, viungo vinaweza kupatikana katika [web.dev kuhusu bfcache](https://web.dev/i18n/en/bfcache/) na [nyaraka za muundo za Chromium kuhusu disk cache](https://www.chromium.org/developers/design-documents/network-stack/disk-cache/), mtawalia.
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{% hint style="success" %}
Learn & practice AWS Hacking:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
Learn & practice GCP Hacking: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
<details>
<summary>Support HackTricks</summary>
* Check the [**subscription plans**](https://github.com/sponsors/carlospolop)!
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
* **Share hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
</details>
{% endhint %}