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    Rewterz Threat Advisory – CVE-2019-10953 – PLC Cycle Time Influences Resource Consumption Vulnerability

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    Rewterz Threat Advisory – CVE-2019-10953 – PLC Cycle Time Influences Resource Consumption Vulnerability

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    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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    March 21, 2023
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    Rewterz Threat Alert – Rhadamanthys Stealer – Active IOCs
    Severity Medium Analysis Summary Rhadamanthys is a type of malware known as a stealer, which is designed to steal sensitive information from infected computers. It was […]
    March 21, 2023
    March 21, 2023
    Rewterz Threat Alert – Mirai Botnet aka Katana – Active IOCs
    Severity High Analysis Summary The Mirai botnet is a type of malware that infects Internet of Things (IoT) devices, such as routers, security cameras, and other […]
    March 21, 2023
    March 21, 2023
    Rewterz Threat Alert – LockBit Ransomware – Active IOCs
    Severity High Analysis Summary LockBit ransomware takes as little as five minutes to deploy the encryption routine on target systems once it lands on the victim […]

    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
Rewterz Threat Advisory – CVE-2019-10712 – WAGO Series 750-88x and 750-87x Undocumented Service Access Vulnerability
April 17, 2019
Rewterz
Rewterz Threat Advisory – CVE-2018-15317 – F5 Multiple BIG-IP Products SSL Denial of Service Vulnerability
April 17, 2019

Rewterz Threat Advisory – CVE-2019-10953 – PLC Cycle Time Influences Resource Consumption Vulnerability

April 17, 2019

Severity

High

Analysis Summary

Researchers have found some controllers are susceptible to a denial-of-service attack due to a flood of network packets.

Impact

Uncontrolled Resource Consumption

Affected Vendors

  • ABB
  • Phoenix Contact
  • Schneider Electric
  • Siemens
  • WAGO

Affected Products

  • Programmable Logic Controllers
  • ABB 1SAP120600R0071 PM554-TP-ETH
  • Phoenix Contact 2700974 ILC 151 ETH
  • Schneider Modicon M221
  • Siemens 6ES7211-1AE40-0XB0 Simatic S7-1211
  • Siemens 6ES7314-6EH04-0AB0 Simatic S7-314
  • Siemens 6ED1052-1CC01-0BA8 Logo! 8
  • WAGO 750-889 Controller KNX IP
  • WAGO 750-8100 Controller PFC100
  • WAGO 750-880 Controller ETH
  • WAGO 750-831 Controller BACnet/IP

Remediation

PHOENIX CONTACT

Phoenix Contact acknowledges this as a “known, won’t fix” issue for old products. Currently available products provide countermeasures to mitigate the impact on the safety-related functionality.

https://www.phoenixcontact.com/assets/downloads_ed/local_pc/web_dwl_technical_info

/ah_en_industrial_security_107913_en_01.pdf

ABB

ABB concludes the reported behavior is not a vulnerability but is due to a misconfiguration of the PLC watchdog,

SIEMENS

Siemens has investigated the vulnerability report on PLC cycle time influences and concludes the report does not demonstrate a valid vulnerability for Siemens PLCs.

WAGO

WAGO recommends users operate the devices in closed networks or protect them with a firewall against unauthorized access. Another recommended mitigation is to limit network traffic via the switch rate limit feature according to application needs.

SCHNEIDER ELECTRIC

Fixes are available in the Modicon M221 firmware v1.10.0.0 and the EcoStruxure Machine Expert – Basic v1.0 software (formerly SoMachine Basic) using either of the following options:

https://www.schneider-electric.com/en/download/document/Machine_Expert_Basic

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Managed Security Services

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Assess

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Transform

  • SOC Consultancy
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  • SIEM Gap Analysis
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Train

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

Respond

  • Incident Analysis
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  • Monthly Threat Insights
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