infraPromedium

Черновик (Chernovik)

hackerlab

Task: Pentest machine with web (Apache) and SSH services. Solution: Exploited preg_replace /e modifier for RCE, cracked SHA-512 password hash with John, then used bash arithmetic injection in sudo script for root access.

linux apache preg_replace_e php_rce password_cracking sha512_crypt john_the_ripper bash_arithmetic_injection sudo_privesc ssh

preg_replace /e modifier RCESHA-512 crypt password hash crackingBash arithmetic evaluation injection in [[ ]]sudo privilege escalation

$ ls tags/ techniques/

linux apache preg_replace_e php_rce password_cracking sha512_crypt john_the_ripper bash_arithmetic_injection sudo_privesc ssh

preg_replace /e modifier RCESHA-512 crypt password hash crackingBash arithmetic evaluation injection in [[ ]]sudo privilege escalation

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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