The Zero Day Initiative (ZDI), a zero-day security research firm, announced a new Linux kernel security bug. This hole allows authenticated remote users to disclose sensitive information and run code on vulnerable Linux kernel versions. . How bad is it? Originally, the ZDI rated it a perfect 10 on the 0 to 10 common Vulnerability Scoring System (CVSS) scale. Now, the hole's "only" a 9.6 . That still counts as a "Patch it! Patch it now!" bug on anyone's Linux server. The problem lies in the Linux 5.15 in-kernel Server Message Block (SMB) server, ksmbd. The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the kernel context. . Critical vulnerability found in Linux kernel, with a severity rating of 9.6. Urgent updates advised to mitigate security risks.. Linux Kernel Security, Remote Code Execution, SMB Vulnerability. . Brittany Day
One year after a vulnerability in the Wi-Fi Protected Access encryption algorithm was reported, a proof-of-concept program for the attack has been released. . . .. One year after a vulnerability in the Wi-Fi Protected Access encryption algorithm was reported, a proof-of-concept program for the attack has been released. The attack affects only Wi-Fi networks using WPA in pre-shared key mode. It is a dictionary attack, meaning that it cycles through a list of words and combinations of words attempting to find one that matches the data on the network. Longer, more random passwords or passphrases, and enterprise implementations that use external authentication systems, are not affected by the vulnerability. The group that released the crack program, Tinypeap, writes Wi-Fi-related software, including a small radius server for certain Linksys routers. The company also wrote a white paper that explains how the crack works and criticizing WPA for the broadcast of data necessary in the creation and verification of a session key. This is the information that the program subjects to the dictionary attack. The white paper also recommends using the company's Tinypeap radius server as a solution to the problem. The link for this article located at eweek.com is no longer available. . Investigates an emerging scheme leveraging a WPA flaw within wireless networks, highlighting potential security threats and mitigation strategies.. WPA Exploit, Wi-Fi Security, Tinypeap Solutions. . Anthony Pell
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