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Rewterz Threat Advisory – CVE-2023-40537 – F5 BIG-IP Vulnerability

Severity

High

Analysis Summary

CVE-2023-40537

F5 BIG-IP could allow a remote attacker to bypass security restrictions, caused by improper validating session cookie for a limited time after logging out from the Configuration utility on a multi-blade VIPRION platform. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass access restrictions.

Impact

  • Security Bypass

Indicators Of Compromise

CVE

  • CVE-2023-40537

Affected Vendors

F5

Affected Products

  • F5 BIG-IP 14.1.0
  • F5 BIG-IP 13.1.0
  • F5 BIG-IP 15.1.0
  • F5 BIG-IP 16.1.0
  • F5 BIG-IP 13.1.5
  • F5 BIG-IP 16.1.3
  • F5 BIG-IP 14.1.5
  • F5 BIG-IP 15.1.8

Remediation

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

F5 Security Advisory