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IcscertVULNRICHMENT:CVE-2023-7243

HistoryMar 01, 2024 - 8:16 p.m.

CVE-2023-7243 Ethercat Zeek Plugin Out-of-bounds Write

2024-03-0120:16:06

CWE-787

icscert

github.com

cve-2023-7243

ethercat

zeek plugin

out-of-bounds write

industrial control systems network protocol parsers

arbitrary code execution

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

39.1%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat
Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds
write while analyzing specific Ethercat datagrams. This could allow an
attacker to cause arbitrary code execution.

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

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

39.1%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

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