Ethercat Vulnerable to Out-of-Bounds Read Attack
CVE-2023-7242

8.2HIGH

Key Information:

Vendor

Cisa

Status
Industrial Control Systems Network Protocol Parsers (icsnpp) - Ethercat Plugin For Zeek
Vendor
CVE Published:
1 March 2024

What is CVE-2023-7242?

A vulnerability exists in the Ethercat Zeek Plugin prior to version d78dda6, where out-of-bounds read can occur during the analysis of a specific Ethercat packet. This flaw enables an attacker to potentially crash the Zeek process, which may result in the leakage of sensitive information stored in memory. Proper safeguards and updates are essential to mitigate risks associated with this vulnerability.

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Deploy the Patch

Affected Version(s)

Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek 0

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-0...

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Cameron Whitehead of HACK@UCF reported these vulnerabilities to CISA.
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