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Google Discloses 20-Year-Old Unpatched Flaw Affecting All Versions of Windows

Google Discloses 20-Year-Old Unpatched Flaw Affecting All Versions of Windows

August 13, 2019Swati Khandelwal
Update — With this month's patch Tuesday updates, Microsoft has finally addressed this vulnerability, tracked as CVE-2019-1162 , by correcting how the Windows operating system handles calls to Advanced Local Procedure Call (ALPC). A Google security researcher has just disclosed details of a 20-year-old unpatched high-severity vulnerability affecting all versions of Microsoft Windows, back from Windows XP to the latest Windows 10. The vulnerability resides in the way MSCTF clients and server communicate with each other, allowing even a low privileged or a sandboxed application to read and write data to a higher privileged application. MSCTF is a module in Text Services Framework (TSF) of the Windows operating system that manages things like input methods, keyboard layouts, text processing, and speech recognition. In a nutshell, when you log in to your Windows machine, it starts a CTF monitor service that works as a central manager to handle communications between all c
Beware! Hackers Can Steal Your Windows Password Remotely Using Chrome

Beware! Hackers Can Steal Your Windows Password Remotely Using Chrome

May 17, 2017Mohit Kumar
A security researcher has discovered a serious vulnerability in the default configuration of the latest version of Google's Chrome running on any version of Microsoft's Windows operating system, including Windows 10, that could allow remote hackers to steal user's login credentials. Researcher Bosko Stankovic of DefenseCode has found that just by visiting a website containing a malicious SCF file could allow victims to unknowingly share their computer's login credentials with hackers via Chrome and the SMB protocol. This technique is not new and was exploited by the Stuxnet — a powerful malware that specially designed to destroy Iran's nuclear program — that used the Windows shortcut LNK files to compromise systems. What’s make this attack different from others is the fact that such SMB authentication related attacks have been first time demonstrated on Google Chrome publicly, after Internet Explorer (IE) and Edge. Chrome + SCF + SMB = Stealing Windows
Hacker Reveals Easiest Way to Hijack Privileged Windows User Session Without Password

Hacker Reveals Easiest Way to Hijack Privileged Windows User Session Without Password

March 20, 2017Mohit Kumar
You may be aware of the fact that a local Windows user with system rights and permissions can reset the password for other users, but did you know that a local user can also hijack other users' session, including domain admin/system user, without knowing their passwords? Alexander Korznikov, an Israeli security researcher, has recently demonstrated that a local privileged user can even hijack the session of any logged-in Windows user who has higher privileges without knowing that user's password, using built-in command line tools. This trick works on almost all versions of Windows operating system and does not require any special privileges. Korznikov is himself unable to figure out if it is a Windows feature or a security flaw. The issue discovered by Korznikov is not entirely new, as a French security researcher, namely Benjamin Delpy, detailed a similar user session hijacking technique on his blog some six years ago. Korznikov calls the attack a "privilege
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