Fortinet Fortigate IPS Engine evasion using custom TCP flags (FG-IR-23-090)

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-23-090 advisory. - A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker to evade IPS features via...

CVE-2023-40718

A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker to evade IPS features via crafted TCP packets...

CVE-2023-40718

CVE-2023-40718 concerns an interpretation/conflict in Fortinet FortiOS IPS Engine affecting Fortinet IPS Engine versions 6.158, 7.166, and 7.321, enabling evasion of IPS features via crafted TCP packets. The connected sources confirm the affected components and root cause, with Fortinet advisorie...