Security Resilience

CVE-2023-2673

Phoenixcontact Fl Mguard 2102 Firmware ≤ 10.1.1

Published
13 June 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0062 49th percentile
Risk Priority 45 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-2673 is a medium-severity Improper Validation of Specified Type of Input (CWE-1287) vulnerability in Phoenixcontact Fl Mguard 2102 Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked at the 49th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

Improper Input Validation vulnerability in PHOENIX CONTACT FL/TC MGUARD Family in multiple versions may allow UDP packets to bypass the filter rules and access the solely connected device behind the MGUARD which can be used for flooding attacks.

CWE(s)
CWE-1287NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
attack.mitre.org →
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-43391Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43388Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43390Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43389Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43393Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-7699Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43387Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43385Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43386Same product: Phoenixcontact Fl Mguard 2102
CVE-2024-43384Same product: Phoenixcontact Fl Mguard 2102

Affected Assets

phoenixcontact
fl mguard 2102 firmware
≤ 10.1.1
phoenixcontact
fl mguard 4102 pci firmware
≤ 10.1.1
phoenixcontact
fl mguard 4102 pcie firmware
≤ 10.1.1
phoenixcontact
fl mguard 4302 firmware
≤ 10.1.1
phoenixcontact
fl mguard centerport firmware
≤ 8.9.0
phoenixcontact
fl mguard centerport vpn-1000 firmware
≤ 8.9.0
phoenixcontact
fl mguard core tx firmware
≤ 8.9.0
phoenixcontact
fl mguard core tx vpn firmware
≤ 8.9.0
phoenixcontact
fl mguard delta tx\/tx firmware
≤ 8.9.0
phoenixcontact
fl mguard delta tx\/tx vpn firmware
≤ 8.9.0
+16 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.1.1
  • V1.4.2
  • V2.1.1
  • V2.2.2

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match
blocks

Secure SDLC practices directly require proper input type validation during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References