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Rewterz Threat Advisory – CVE-2021-43410 – Apache Airavata Django Portal Vulnerability
December 7, 2021
Rewterz Threat Advisory – TA505 Targeting Financial Sector
December 7, 2021

Rewterz Threat Advisory – CVE-2021-42717 – F5 NGINX ModSecurity WAF

December 7, 2021

Severity

Medium

Analysis Summary

CVE-2021-42717

F5 NGINX ModSecurity WAF is vulnerable to a denial of service, caused by an uncontrolled recursion flaw. By sending specially-crafted JSON messages, a remote attacker could exploit this vulnerability to cause high resource utilization and results in a denial of service condition.

Impact

  • Denial of Service

Affected Vendors

F5

Affected Products

  • F5 NGINX ModSecurity WAF R24
  • F5 NGINX ModSecurity WAF R25

Remediation

Refer to F5 Security Advisory for patch, upgrade or suggested workaround information.

https://support.f5.com/csp/article/K50839343

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    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
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      • Social Engineering
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    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
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    •     SIEM Gap Analysis
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    • Tabletop Exercise
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  • Managed Security
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      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
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      • Managed Detection and Response
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      • Managed Penetration Testing
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