PT-2024-2141 · Zeek · Icsnpp - Ethercat Zeek Plugin

Cameron Whitehead · Published 2024-02-20 · Updated 2024-03-12 · CVE-2023-7244

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior

Description The issue is related to an out-of-bounds write in the primary analyses function for Ethercat communication packets. This could allow an attacker to cause arbitrary code execution. The vulnerability is associated with a buffer overflow in memory, which can be exploited by a remote attacker to execute arbitrary code.

Recommendations For Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior, consider disabling the primary analyses function for Ethercat communication packets as a temporary workaround until a patch is available. Restrict access to the vulnerable Zeek plugin to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2024-02050

CVE-2023-7244

Affected Products

Icsnpp - Ethercat Zeek Plugin

References · 11

• https://osv.dev/vulnerability/CVE-2023-7244 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-02050 · Security Note
• https://cisa.gov/news-events/ics-advisories/icsa-24-051-02 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-7244 · Security Note
• https://github.com/cisagov/icsnpp-ethercat · Note
• https://t.me/true_secator/5502 · Telegram Post
• https://twitter.com/XynikIT/status/1764989025226461507 · Twitter Post
• https://t.me/cvenotify/72824 · Telegram Post
• https://twitter.com/Action1corp/status/1767606370793042160 · Twitter Post
• https://t.me/cvenotify/73290 · Telegram Post
• https://twitter.com/cracbot/status/1764024210538577991 · Twitter Post