Improper Verification Vulnerability in Fortinet FortiOS
CVE-2022-27491

6.8MEDIUM

Key Information:

Vendor

Fortinet
Status
Fortinet FortiOS
Vendor
CVE Published:
6 September 2022

What is CVE-2022-27491?

A vulnerability in Fortinet's FortiOS allows remote, unauthenticated attackers to exploit improper source verification in the IPS engine. This can lead to the triggering of 'blocked page' HTML data being sent to targeted victims via crafted TCP requests, potentially overwhelming them with unwanted traffic.

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Affected Version(s)

Fortinet FortiOS FortiOS 7.2.0, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.4.9, 6.4.8, 6.4.7, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.10, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.14, 6.0.13, 6.0.12, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0

References

https://fortiguard.com/psirt/FG-IR-22-073
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CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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