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    Rewterz Threat Advisory – CVE-2020-3119 – Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution

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    September 25, 2023
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    September 25, 2023
    Rewterz Threat Advisory – CVE-2023-42753 – Linux Kernel Vulnerability
    Severity High Analysis Summary CVE-2023-42753 Linux Kernel could allow a local authenticated attacker to execute arbitrary code on the system, caused by an integer underflow due […]
    September 25, 2023
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    September 25, 2023
    Rewterz Threat Alert – AsyncRAT – Active IOCs
    Severity Medium Analysis Summary AsyncRAT is an open-source tool designed for remote monitoring via encrypted connections. However, it could be utilized by threat actors as it […]
    September 22, 2023
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    September 22, 2023
    Rewterz Threat Alert – An Emerging Ducktail Infostealer – Active IOCs
    Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]

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    Annual Threat Intelligence Report 2022
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    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.

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    Rewterz Threat Advisory – CVE-2020-3119 – Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution

    Managed Security Services

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

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

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    • APT Assessment
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    September 25, 2023
    Rewterz
    September 25, 2023
    Rewterz Threat Advisory – CVE-2023-42753 – Linux Kernel Vulnerability
    Severity High Analysis Summary CVE-2023-42753 Linux Kernel could allow a local authenticated attacker to execute arbitrary code on the system, caused by an integer underflow due […]
    September 25, 2023
    Rewterz
    September 25, 2023
    Rewterz Threat Alert – AsyncRAT – Active IOCs
    Severity Medium Analysis Summary AsyncRAT is an open-source tool designed for remote monitoring via encrypted connections. However, it could be utilized by threat actors as it […]
    September 22, 2023
    Rewterz
    September 22, 2023
    Rewterz Threat Alert – An Emerging Ducktail Infostealer – Active IOCs
    Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]

    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.

    Connect with Us

    • Contact
    • Careers
Get in Touch
Rewterz
Rewterz Threat Advisory – ICS: Siemens SIMATIC CP 1543-1
February 13, 2020
Rewterz
Rewterz Threat Alert – Emotet Malware Hacks Nearby Wi-Fi Networks to Infect New Victims
February 14, 2020

Rewterz Threat Advisory – CVE-2020-3119 – Cisco NX-OS Software Cisco Discovery Protocol Remote Code Execution

February 13, 2020

Severity

High

Analysis Summary

The vulnerability exists because the Cisco Discovery Protocol parser does not properly validate input for certain fields in a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. An successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device.

Impact

Privilege Escalation

Affected Vendors

Cisco

Affected Products

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 5500 Platform Switches
  • Cisco Nexus 5600 Platform Switches
  • Cisco Nexus 6000 Series Switches
  • Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode
  • Cisco Nexus 9000 Series Switches in standalone NX-OS mode

Remediation

Please refer to vendor’s advisory for the list of upgraded patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce

Platform

  • Rewterz XDR
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Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
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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
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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