malicious HTML

0-day exploits refer to vulnerabilities in software or systems that are unknown to the vendor or developer and are actively being exploited by attackers. HTML smuggling is a technique used to bypass security controls and inject malicious HTML code into a website or application.

One example of an HTML smuggling attack is the use of "HTMLEncoded" payloads. In this type of attack, the attacker encodes their malicious HTML code in a way that appears benign to security controls, but when decoded by the victim's browser, the code is executed and allows the attacker to gain access to the system or steal sensitive information.

Another example is the use of "MIME-sniffing" to bypass content-type restrictions. In this type of attack, the attacker injects HTML code into a file with a benign content-type, such as a .jpg or .pdf file. When the file is opened by the victim, the browser "sniffs" the content and executes the HTML code, allowing the attacker to gain access to the system or steal sensitive information.

To protect against HTML smuggling attacks, it is important to ensure that all systems and software are kept up to date with the latest security patches and that robust security controls, such as content-type filtering and input validation, are in place. It is also important to educate users on the risks of opening suspicious files or clicking on links from unknown sources.

سعيد جبر أخصائي أمن المعلومات

بخبرة تصل لأكثر من 20 عاماُ جعلته يتربع على عرش المجالات المُتعلقة بأمن تكنولوجيا المعلومات وإدارة المخاطر، حيث يُعد أكثر المجالات أهمية وهيمنة على المستوى الرقمي والواقعي