In this video we are going to solve one of the vulnmachines lab zero is cool.
PHP verion 8.1.0 backdoor 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 #attackers 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.
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#cve #bugbounty #backdoor #exploit #pentesting #rce #infosec #pentest #php8 #vulnerability #cybersecurity #2021 #owasptop10 #owasp
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