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Rewterz Threat Advisory –Multiple Palo Alto Security Vulnerabilities
August 12, 2021
Rewterz Threat Alert –Sodinokibi Ransomware – Active IOCs
August 12, 2021

Rewterz Threat Advisory –CVE-2021-30789 – Apple macOS Security Vulnerability

August 12, 2021

Severity

Low

Analysis Summary

CVE-2021-30789

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the CoreText library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. A specific flaw exists within the parsing of TTF fonts. Crafted data in a TTF font can trigger a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

Impact

  • Information Disclosure
  • Code Execution

Affected Vendors

Apple

Affected Products

  • macOS

Remediation

Apple has issued an update to correct this vulnerability. More details can be found at:

https://support.apple.com/en-us/HT212602

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    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
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      • 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
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    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • Onsite SOC
      • Hybrid SOC
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      • Managed Penetration Testing
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