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Rewterz Threat Alert – ProLock RansomWare – IOCs
May 7, 2020
Rewterz Threat Alert – Credit Card Skimmer Masquerades as Favicon
May 8, 2020

Rewterz Threat Advisory – CVE-2020-10732 – Linux Kernel information disclosure Vulnerability

May 8, 2020

Severity

Medium

Analysis Summary

A potential info leak of kernel private memory to userspace was found in the kernel’s implementation of core dumping userspace processes. An area of memory was allocated from free memory without being correctly initialized, this memory contents could contain kernel private information from previous executions and leak it to kernel space for any (probably local) user that is able to read the core dump.

Impact

Exposure of sensitive data

Affected Vendors

Linux

Affected Products

Linux Kernel

Remediation

A possible mitigation would be to disable core dumps system-wide by setting: * hard core 0

 In the  /etc/security/limits.conf file and restarting applications/services/processes which users may have access to or simply reboot the system. This disables core dumps.
  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
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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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      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
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      • Managed Penetration Testing
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