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    Rewterz Threat Advisory – CVE-2022-20823 – Cisco NX-OS Software Vulnerability

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    • Remote SOC
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    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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    June 2, 2023
    Rewterz
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    Rewterz Threat Alert – APT Group Gamaredon aka Shuckworm – Active IOCs
    Severity High Analysis Summary Shuckworm APT – aka Actinium, Armageddon, Primitive Bear, Gamaredon, and Trident Ursa – is a Russia-backed advanced persistent threat (APT) that has […]
    June 2, 2023
    Rewterz
    June 2, 2023
    Rewterz Threat Alert – StormKitty Stealer: A Threatening Information-Stealing Malware – Active IOCs
    Severity High Analysis Summary StormKitty information stealer is designed to compromise sensitive data from infected systems, such as login credentials, passwords, cryptocurrency wallets, and other valuable […]
    June 2, 2023
    Rewterz
    June 2, 2023
    Rewterz Threat Alert –Tofsee Malware – Active IOCs
    Severity High Analysis Summary Tofsee malware has been around since 2016. Once installed on a compromised computer, it can be used to send spam emails and […]

    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
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Rewterz Threat Alert – Mirai Botnet – Active IOCs
August 25, 2022
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Rewterz Threat Advisory – CVE-2022-20921 – Cisco ACI Multi-Site Orchestrator (MSO) Vulnerability
August 25, 2022

Rewterz Threat Advisory – CVE-2022-20823 – Cisco NX-OS Software Vulnerability

August 25, 2022

Severity

High

Analysis Summary

CVE-2022-20823

Cisco NX-OS Software is vulnerable to a denial of service, caused by improper input validation of specific OSPFv3 packets. By sending a specially-crafted OSPFv3 link-state advertisement (LSA), a remote attacker could exploit this vulnerability to cause the OSPFv3 process to crash and restart multiple times.

Impact

  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2022-20823

Affected Vendors

Cisco

Affected Products

Cisco Nexus 3000 Series Switches
Cisco Nexus 6000 Series Switches
Cisco Nexus 7000 Series Switches
Cisco Nexus 5500 Platform Switches

Remediation

Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.

Cisco Security Advisory

Platform

  • Rewterz XDR
  • Rewterz Defense
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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
  • 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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