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    Rewterz Threat Advisory -Multiple Microsoft Windows Products Vulnerabilties
    Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]

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    Rewterz Threat Alert -New Golang-Based Botnet GoBruteforcer Breaches Web Servers – Active IOCs
    Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Alert – DarkComet RAT (Remote Access Trojan) – Active IOCs
    Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]
    March 15, 2023
    March 15, 2023
    Rewterz Threat Advisory -Multiple Microsoft Windows Products Vulnerabilties
    Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

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Rewterz Threat Advisory – Microsoft Windows Server 2012 / Windows RT 8.1 / 8.1 Multiple Vulnerabilities
September 12, 2018
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Rewterz Threat Advisory – PyLocky ransomware using unique evasion tactics
September 13, 2018

Rewterz Threat Advisory – Microsoft Windows Server 2016 / Windows 10 Multiple Vulnerabilities

September 12, 2018

Multiple vulnerabilities have been reported in MS windows server 2016 and Windows 10, occurring due to a total of 29 errors.

 

 

IMPACT:  HIGH

 

PUBLISH DATE:  12-09-2018

 

OVERVIEW

 

 

Multiple vulnerabilities have been reported in Microsoft Windows 10 and Microsoft Windows Server 2016. These may cause system access, DoS, Privilege escalation, Exposure of sensitive information, Manipulation of data and Security Bypass, when exploited.

 

Updates are available for the affected products.

 

 

ANALYSIS

 

A total of 29 errors has been reported in the affected products, which are as follows.

 

  • Microsoft Windows task scheduler has an error when handling ALPC calls related to the “SchRpcSetSecurity()” function that can be exploited to gain elevated SYSTEM privileges.
  • An arbitrary code can be executed with host privileges due to an error in Windows Hyper-V.
  • An error related to the bowser.sys driver when handling objects in memory may disclose kernel memory when exploited.
  • An error when handling SMB requests can be exploited to crash the system via a specially crafted SMB request.
  • An error related to the Windows Kernel API when handling registry objects in memory can be exploited to gain elevated privileges.
  • An error related to Windows kernel when initializing memory can be exploited to disclose certain information.
  • An error related to the MSXML parser can be exploited to execute arbitrary code via specially crafted XML.
  • An error related to the Windows GDI component can be exploited to disclose memory contents.
  • An error related to the DXGKRNL driver when handling objects in memory can be exploited to gain elevated privileges.
  • A boundary error within the “bEmit()” function (gdiplus.dll) can be exploited to disclose certain information.
  • An error when handling image files can be exploited to execute arbitrary code via a specially crafted image file.
  • An error related to the Windows Subsystem for Linux can be exploited to modify arbitrary files.
  • An error related to the Microsoft JET Database Engine can be exploited to execute arbitrary code via a specially crafted Excel file.
  • Another error related to the Microsoft JET Database Engine can be exploited to execute arbitrary code via a specially crafted Excel file.
  • An error related to Windows Hyper-V can be exploited to disclose host memory contents.
  • An error related to the Windows Hyper-V BIOS loader when providing a high-entropy source exists.
  • An error related to Windows Hyper-V can be exploited to crash the host.
  • Another error related to Windows Hyper-V can be exploited to crash the host.
  • Another error related to Windows Hyper-V can be exploited to crash the host.
  • An error related to Windows Hyper-V can be exploited to execute arbitrary code with host privileges.
  • An error related to Windows Subsystem for Linux can be exploited to execute arbitrary code with elevated privileges.
  • An error related to Windows kernel when handling objects in memory can be exploited to disclose certain information.
  • Another error related to Windows kernel when handling objects in memory can be exploited to disclose certain information.
  • An error when handling SMBv2 requests can be exploited to disclose certain information.
  • An error related to Windows kernel when handling objects in memory can be exploited to disclose certain information.
  • Another error related to Windows kernel when handling objects in memory can be exploited to disclose certain information.
  • An error related to Device Guard can be exploited to bypass Device Guard file signature validation.
  • An error related to Windows kernel when handling objects in memory can be exploited to execute arbitrary code with elevated privileges.
  • An error when parsing files can be exploited to bypass sandbox restrictions and subsequently gain elevated privileges.

 

  • AFFECTED PRODUCTS

 

  • Microsoft Windows 10Microsoft Windows Server 2016

 

  • UPDATES

 

 

  • Update the following versions as suggested:
  • Windows 10 Version 1803 for x64-based Systems (KB4457128):
  • Windows Server, version 1803 (Server Core Installation) (KB4457128):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457128
  • Windows Server 2016 (KB4457131):
  • Windows 10 Version 1607 for x64-based Systems (KB4457131):
  • Windows Server 2016 (Server Core installation) (KB4457131):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457131
  • Windows 10 Version 1703 for x64-based Systems (KB4457138):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457138
  • Windows Server, version 1709 (Server Core Installation) (KB4457142):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457142
  • Windows 10 for 32-bit Systems (KB4457132):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457132
  • Windows 10 Version 1803 for 32-bit Systems (KB4457128):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457128
  • Windows 10 Version 1607 for 32-bit Systems (KB4457131):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457131
  • Windows 10 for x64-based Systems (KB4457132):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457132
  • Windows 10 Version 1703 for 32-bit Systems (KB4457138):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457138
  • Windows 10 Version 1709 for x64-based Systems (KB4457142):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457142
  • Windows 10 Version 1709 for 32-bit Systems (KB4457142):
  • https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4457142

 

  • It is recommended to update the products you’re using, if any, as soon as possible.If you think you’re the victim of a cyber-attack, immediately send an email to info@rewterz.com

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
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Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
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