{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-7243 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-7243 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-7243 is a critical memory corruption vulnerability in CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek, published on 1 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-7243 and fix it if it is affected.\n\nWhat it is: CVE-2023-7243 is a critical memory corruption vulnerability in CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek, published on 1 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-7243 in the wild and no public exploit code.\n\nAffected product: CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-7243/ (Markdown: https://insights.sbomify.com/CVE-2023-7243/index.md)","id":"CVE-2023-7243","markdown":"https://insights.sbomify.com/CVE-2023-7243/index.md","name":"CVE-2023-7243","record":{"aliases":["GHSA-wm94-vqmp-vf4v"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"ICS network protocol parser","requires_auth":"none","summary":"An attacker can achieve arbitrary code execution by sending malicious Ethercat datagrams to the Zeek plugin, impacting industrial control system monitoring.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"icsnpp-ethercat","vendor":"cisa"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat \nZeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds \nwrite while analyzing specific Ethercat datagrams. This could allow an \nattacker to cause arbitrary code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Ethercat Zeek Plugin Out-of-bounds Write","id":"CVE-2023-7243","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Ethercat Zeek Plugin Out-of-bounds Write","id":"CVE-2023-7244"},"packages":[],"prev":{"headline":"Ethercat Zeek Plugin Out-of-bounds Read","id":"CVE-2023-7242"},"products":["Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek"],"published":"2024-03-01","related":[{"cvss_score":9.8,"headline":"Ethercat Zeek Plugin Out-of-bounds Write","id":"CVE-2023-7244","kev_date_added":null,"published":"2024-03-01"},{"cvss_score":8.2,"headline":"Ethercat Zeek Plugin Out-of-bounds Read","id":"CVE-2023-7242","kev_date_added":null,"published":"2024-03-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-08-02","vendors":["CISA"]},"summary":"An attacker can achieve arbitrary code execution by sending malicious Ethercat datagrams to the Zeek plugin, impacting industrial control system monitoring.","url":"https://insights.sbomify.com/CVE-2023-7243/"}