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Ebrahim Hegazy | Breaking Cybersecurity News | The Hacker News

Yahoo Quickly Fixes SQL Injection Vulnerability Escalated to Remote Code Execution

Yahoo Quickly Fixes SQL Injection Vulnerability Escalated to Remote Code Execution
Sep 20, 2014
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

Critical vulnerability in Twitter allows attacker to upload Unrestricted Files

Critical vulnerability in Twitter allows attacker to upload Unrestricted Files
Oct 30, 2013
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 validation

Timing is Everything: The Role of Just-in-Time Privileged Access in Security Evolution

Timing is Everything: The Role of Just-in-Time Privileged Access in Security Evolution
Apr 15, 2024Active Directory / Attack Surface
To minimize the risk of privilege misuse, a trend in the privileged access management (PAM) solution market involves implementing just-in-time (JIT) privileged access. This approach to  privileged identity management  aims to mitigate the risks associated with prolonged high-level access by granting privileges temporarily and only when necessary, rather than providing users with continuous high-level privileges. By adopting this strategy, organizations can enhance security, minimize the window of opportunity for potential attackers and ensure that users access privileged resources only when necessary.  What is JIT and why is it important?   JIT privileged access provisioning  involves granting privileged access to users on a temporary basis, aligning with the concept of least privilege. This principle provides users with only the minimum level of access required to perform their tasks, and only for the amount of time required to do so. One of the key advantages of JIT provisioning
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