High severity · published Feb 16, 2023
CVE-2022-39948
An improper certificate validation vulnerability [CWE-295] in FortiOS 7.2.0 through 7.2.3, 7.0.0 through 7.0.7, 6.4 all versions, 6.2 all versions, 6.0 all versions and FortiProxy…
7.4
CVSS
0.3%
EPSS
No
On KEV
Description
An improper certificate validation vulnerability [CWE-295] in FortiOS 7.2.0 through 7.2.3, 7.0.0 through 7.0.7, 6.4 all versions, 6.2 all versions, 6.0 all versions and FortiProxy 7.0.0 through 7.0.6, 2.0 all versions, 1.2 all versions may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the FortiOS/FortiProxy device and remote servers hosting threat feeds (when the latter are configured as Fabric connectors in FortiOS/FortiProxy)
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiOS · Fortinet
6.0.0 before 7.0.8; 7.2.0 before 7.2.4 · source: NVD
FO
Fortiproxy · Fortinet
1.2.0 through 2.0.9; 7.0.0 before 7.0.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39948
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-39948
Vendor Advisory
https://fortiguard.com/psirt/FG-IR-22-257
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