CVE-2022-39954 XML external entity in FortiNAC

What is CVE-2022-39954?

CVE-2022-39954 is a medium-severity vulnerability in Fortinet FortiNAC, published on 16 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An improper restriction of xml external entity reference in Fortinet FortiNAC version 9.4.0 through 9.4.1, FortiNAC version 9.2.0 through 9.2.7, FortiNAC version 9.1.0 through 9.1.8, FortiNAC version 8.8.0 through 8.8.11, FortiNAC version 8.7.0 through 8.7.6, FortiNAC version 8.6.0 through 8.6.5, FortiNAC version 8.5.0 through 8.5.4, FortiNAC version 8.3.7 allows attacker to read arbitrary files or trigger a denial of service via specifically crafted XML documents.

Weakness: CWE-611

Which versions are affected by CVE-2022-39954?

It affects 2 products.

Products include Fortinet Fortinac, Fortinet Fortinac-F.

How do I fix CVE-2022-39954?

No fix has been published for CVE-2022-39954 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-39954 being exploited?

There is no known exploitation of CVE-2022-39954 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiNAC

• CVE-2022-39952 Path traversal in FortiNAC Critical 9.8
• CVE-2023-33299 Deserialization in FortiNAC Critical 9.6
• CVE-2022-26117 Hardcoded credentials in Fortinet FortiNAC High 8.8
• CVE-2022-38375 Missing authorization in FortiNAC High 8.6
• CVE-2022-39953 Privilege escalation in FortiNAC High 7.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6g49-f785-8862.