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IcscertVULNRICHMENT:CVE-2023-7242

HistoryMar 01, 2024 - 8:17 p.m.

CVE-2023-7242 Ethercat Zeek Plugin Out-of-bounds Read

2024-03-0120:17:51

CWE-125

icscert

github.com

cve-2023-7242

industrial control systems

network protocol parsers

zeek plugin

out-of-bounds read

ethercat

vulnerability

attack

memory leakage

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

AI Score

8.1

Confidence

High

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat
Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds
read during the process of analyzing a specific Ethercat packet. This
could allow an attacker to crash the Zeek process and leak some
information in memory.

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:cisa:icsnpp-ethercat:*:*:*:*:*:zeek:*:*"
    ],
    "vendor": "cisa",
    "product": "icsnpp-ethercat",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "d78dda6",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

www.cisa.gov/news-events/ics-advisories/icsa-24-051-02

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

AI Score

8.1

Confidence

High

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

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