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Rewterz Threat Advisory – CVE-2020-5947 – F5 BIG-IP security bypass

Severity

Medium

Analysis Summary

CVE-2020-5947

F5 BIG-IP could allow a remote authenticated attacker to bypass security restrictions, caused by the ability to obtain TCP sequence numbers. By spoofing TCP packets, an attacker could exploit this vulnerability to perform TCP sequence prediction attack.

Impact

Security bypass

Affected Vendors

F5

Affected Products

  • F5 BIG-IP 15.0.0
  • F5 BIG-IP 16.0.0
  • F5 BIG-IP 15.1.1

Remediation

Refer to F5 Security Advisory K64571774 for patch, upgrade or suggested workaround information.

https://support.f5.com/csp/article/K64571774