Exploit for Out-of-bounds Write in Microsoft

Compiled PoC Binary For CVE-2023-28252 The repo contains a...

Windows CLFS and five exploits used by ransomware operators (Exploit #5 – CVE-2023-28252)

This is part six of our study about the Common Log File System CLFS and five vulnerabilities in this Windows OS component that have been used in ransomware attacks throughout the year. Please read the previous parts first if you havent already. You can go to other parts using this table of...

Windows Common Log File System Driver (clfs.sys) Privilege Escalation Exploit

A privilege escalation vulnerability exists in the clfs.sys driver which comes installed by default on Windows 10 21H2, Windows 11 21H2 and Windows Server 20348 operating systems. This Metasploit module exploit makes use to two different kinds of specially crafted .blf files. This module requires...

Windows Common Log File System Driver (clfs.sys) Privilege Escalation

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Windows Common Log File System Driver clfs.sys Elevation of Privilege Vulnerability', 'Description' = %q A privilege escalation vulnerability...

Exploit for Out-of-bounds Write in Microsoft

Since February 2022 was reported a new ransomware that appears t...

Exploit for Out-of-bounds Write in Microsoft

Since February 2022 was reported a new ransomware that appears t...

The Bug Report – April 2023 Edition

The Bug Report – April 2023 Edition By Trellix · May 03, 2023 This story was also written by John Rodriguez. It’s never easy coming back. Why am I here? Seems as if some of us should have stayed at our tropical vacation getaway. Nothing like coming back to the cyber world screeching about...

Microsoft April 2023 Patch Tuesday Highlights: everything you need to know

Detect and mitigate CVE-2023-28252, EoP vulnerability exploited in the wild, and CVE-2023-21554, a critical RCE vulnerability. Organizations should patch urgently...

Cybercrime group exploits zero-day on Windows servers to deploy Nokoyawa ransomware

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary Nokoyawa ransomware is a new threat that exploits the CVE-2023-28252 vulnerability to infiltrate and encrypt victims files, demanding a ransom for their release. To receive real-time threat advisories,...

Update now! April’s Patch Tuesday includes a fix for one zero-day

Its Patch Tuesday again. Microsoft and other vendors have released their monthly updates. Among a total of 97 patched vulnerabilities there is one actively exploited zero-day. Microsoft classifies a vulnerability as a zero-day if it is publicly disclosed or actively exploited with no official fix...

Urgent: Microsoft Issues Patches for 97 Flaws, Including Active Ransomware Exploit

It's the second Tuesday of the month, and Microsoft has released another set of security updates to fix a total of 97 flaws impacting its software, one of which has been actively exploited in ransomware attacks in the wild. Seven of the 97 bugs are rated Critical and 90 are rated Important in...

Microsoft Patch Tuesday for April 2023 — Snort rules and prominent vulnerabilities

Microsoft released its monthly round of security updates and patches today, continuing its trend of fixing zero-day vulnerabilities on Patch Tuesday. Aprils security update includes one vulnerability thats actively being exploited in the wild. There are also eight critical vulnerabilities and the...

CVE-2023-28252

CVE-2023-28252 – Windows CLFS driver local privilege escalation : The vulnerability stems from CLFS.sys handling of file blocks in memory (m_rgBlocks) and associated metadata, enabling an out-of-bounds access that lets an unprivileged user hijack the SYSTEM token. Public PoCs and in-the-wild acti...

CVE-2023-28252 Windows Common Log File System Driver Elevation of Privilege Vulnerability

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CVE-2023-28252 Windows Common Log File System Driver Elevation of Privilege Vulnerability

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CVE-2023-28252

creationtimestamp| type| source ---|---|--- 2023-04-11 17:54:18+00:00| exploited| https://t.me/alexmakus/4965 2023-04-11 18:59:27+00:00| exploited| https://t.me/poxek/2816 2023-04-11 20:59:25+00:00| seen| https://t.me/kasperskyb2b/567 2023-04-11 22:36:42+00:00| exploited| https://t.me/ctinow/1050...

Nokoyawa ransomware attacks with Windows zero-day

Updated April 20, 2023 In February 2023, Kaspersky technologies detected a number of attempts to execute similar elevation-of-privilege exploits on Microsoft Windows servers belonging to small and medium-sized businesses in the Middle East, in North America, and previously in Asia regions. These...

Vulnerabilities fixed in Microsoft Windows

Microsoft has fixed vulnerabilities in Windows. A malicious party can exploit the vulnerabilities to launch attacks execute attacks that can lead to the following categories of damage: Denial-of-Service DoS. Circumvention of security measure Remote code execution Administrator/Root rights Remote...