High severity · published Nov 15, 2022
CVE-2022-3480
A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD and TC MGUARD devices below version 8.9.0 by sending a larger number of…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD and TC MGUARD devices below version 8.9.0 by sending a larger number of unauthenticated HTTPS connections originating from different source IP’s. Configuring firewall limits for incoming connections cannot prevent the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FM
FL Mguard Centerport Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Centerport Vpn-1000 Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Core TX Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Core TX Vpn Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Delta Tx/tx Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Delta Tx/tx Vpn Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Gt/gt Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Gt/gt Vpn Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Pci4000 Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Pci4000 Vpn Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Pcie4000 Firmware · Phoenixcontact
before 8.9.0 · source: NVD
FM
FL Mguard Pcie4000 Vpn Firmware · Phoenixcontact
before 8.9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3480
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3480
Mitigation
https://cert.vde.com/en/advisories/VDE-2022-051/
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