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Rewterz Threat Alert – LokiBot Malware – Active IOCs
November 22, 2021
Rewterz Threat Update – CVE-2021-42321 – Targeted Attacks Exploiting Microsoft Exchange Servers
November 23, 2021

Rewterz Threat Advisory – CVE-2021-43557 – Apache APISIX Directory Vulnerability

November 23, 2021

Severity

Medium

Analysis Summary

CVE-2021-43557 

Apache APISIX could allow a remote attacker to traverse directories on the system, caused by improper validation of user requests. An attacker could send a specially-crafted URL request containing “dot dot” sequences (/../) in the request_uri parameter to view arbitrary files on the system.

Impact

  • Remote Code Execution

Affected Vendors

Apache

Affected Products

  • Apache APISIX 2.10

Remediation

Upgrade to the latest version of Apache APISIX, available from the Apache Web site.

https://apisix.apache.org/

  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • 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
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Threat Advisory
  • Company
    • About Us
    • Careers
    • Contact
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