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Rewterz Threat Update – Update on HermeticRansom Targeting Ukraine – Russian-Ukrainian Cyber Warfare
March 7, 2022
Rewterz Threat Alert – FormBook Malware – Active IOCs
March 8, 2022

Rewterz Threat Advisory – CVE-2022-0847 – Linux Kernel Vulnerability

March 8, 2022

Severity

Medium

Analysis Summary

CVE-2022-0847

Linux Kernel could allow a locally authenticated attacker to gain elevated privileges on the system, caused by improper initialization in the copy_page_to_iter_pipe and push_pipe functions. By writing to pages in the page cache backed by read-only files, an authenticated attacker could exploit this vulnerability to gain elevated privileges.

Impact

  • Privilege Escalation

Indicators Of Compromise

CVE

  • CVE-2022-0847

Affected Vendors

Linux

Affected Products

  • Linux Kernel 5.10
  • Linux Kernel 5.15
  • Linux Kernel 5.16

Remediation

Upgrade to the latest version of Linux Kernel, available from the Linux Kernel Web site.

https://kernel.org/

  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
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    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
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      • Managed Risk-Based SOAR
      • Managed Penetration Testing
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