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    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
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    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

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    Rewterz Threat Advisory – CVE-2018-8374  Microsoft Exchange Server Tampering Vulnerability

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    Rewterz Threat Alert – GandCrab or .CRAB Ransomware – Active IOCs
    Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]
    March 25, 2023
    March 25, 2023
    Rewterz Threat Alert – NJRAT – Active IOCs
    Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]
    March 24, 2023
    March 24, 2023
    Rewterz Threat Advisory – CVE-2023-20113 – Cisco SD-WAN vManage Software Vulnerability
    Severity Medium Analysis Summary CVE-2023-20113  Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]

    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 Adobe Flash Player Multiple Vulnerabilities
August 15, 2018
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Rewterz Threat Advisory – CVE-2018-6973 and CVE-2018-3646 VMWare Workstation Player Multiple Vulnerabilities
August 16, 2018

Rewterz Threat Advisory – CVE-2018-8374 Microsoft Exchange Server Tampering Vulnerability

August 15, 2018

A tampering vulnerability exists when Microsoft Exchange Server fails to properly handle profile data. This may lead to unauthorized modification of system or user information.

 

 

IMPACT:  NORMAL

PUBLISH DATE:  15-08-2018

OVERVIEW

A tampering security bypass vulnerability exists when Microsoft Exchange Server fails to properly handle profile data. In case of a successful attack, this vulnerability can be exploited by a remote authenticated user to modify a targeted user’s profile data or a system’s information.

 

 

ANALYSIS

The profile or system data can be modified by a remote authenticated user by sending specially crafted requests to the target Microsoft Exchange server.

 

This process exploits a security bypass vulnerability in the processing of profile data and modifies the target user’s profile data.

 

To exploit the vulnerability, an attacker would need to be authenticated on an affected Exchange Server. The attacker would then proceed to send the specially modified request to the server, targeting a specific user. The security update addresses the vulnerability by modifying how Microsoft Exchange Server handles profile data.

 

 

AFFECTED PRODUCTS

Microsoft Exchange Server 2016 Cumulative Update 10

Microsoft Exchange Server 2016 Cumulative Update 9

 

 

UPDATES

Apply the following updates to the relevant systems:

 

  • Microsoft Exchange Server 2016 Cumulative Update 10 https://www.microsoft.com/downloads/details.aspx?familyid=4392a20a–0c93–4385–bebd–809f8ca5213b

 

  • Microsoft Exchange Server 2016 Cumulative Update 9 https://www.microsoft.com/downloads/details.aspx?familyid=4392a20a–0c93–4385–bebd–809f8ca5213b

 

 

It is best to immediately update the running versions of the affected products as per the advisory. Furthermore, if you think you are a victim of a cyber-security attack. Immediately send an email to info@rewterz.com for a rapid response.  

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
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Connect With Us

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  • Careers
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