Ebrahim Hegazy | Breaking Cybersecurity News | The Hacker News

Yahoo! was recently impacted by a critical web application vulnerabilities which left website's database and server vulnerable to hackers. A cyber security expert and penetration tester, Ebrahim Hegazy a.k.a Zigoo from Egypt , has found a serious SQL injection vulnerability in Yahoo's website that allows an attacker to remotely execute any commands on its server with Root Privileges. According to Hegazy blog post , the SQLi vulnerability resides in a domain of Yahoo! website i.e. https://innovationjockeys.net/tictac_chk_req.php . Any remote user can manipulate the input to the " f_id " parameter in the above URL, which could be exploited to extract database from the server. While pentesting, he found username and password ( encoded as Base64 ) of Yahoo!' admin panel stored in the database. He decoded the Administrator Password and successfully Logged in to the Admin panel. Furthermore, SQL injection flaw also facilitate the attacker to exploit Remote Cod...

Security expert Ebrahim Hegazy , Cyber Security Analyst Consultant at Q-CERT, has found a serious vulnerability in Twitter that allows an attacker to upload files of any extension including PHP. When an application does not validate or improperly validates file types before uploading files to the system, called Unrestricted File upload vulnerability . Such flaws allow an attacker to upload and execute arbitrary code on the target system which could result in execution of arbitrary HTML and script code or system compromise. According to Ebrahim, when a developer creates a new application for Twitter  i.e. dev.twitter.com - they have an option to upload an image for that application. While uploading the image, the Twitter server will check for the uploaded files to accept certain image extensions only, like PNG, JPG and other extensions won't get uploaded. But in a Video Proof of Concept he demonstrated  that, a vulnerability allowed him to bypass this security va...

Attack surfaces are growing faster than security teams can keep up – to stay ahead, you need to know what's exposed and where attackers are most likely to strike. With cloud adoption dramatically increasing the ease of exposing new systems and services to the internet, prioritizing threats and managing your attack surface from an attacker's perspective has never been more important. In this guide, we look at why attack surfaces are growing and how to monitor and manage them properly with  tools like Intruder . Let's dive in. What is your attack surface? First, it's important to understand what we mean when we talk about an attack surface. An attack surface is the sum of your digital assets that are 'reachable' by an attacker – whether they are secure or vulnerable, known or unknown, in active use or not. You can also have both internal and external attack surfaces - imagine for example a malicious email attachment landing in a colleague's inbox, vs a new FTP server being...