{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2018-8840 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-8840 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-8840 is a critical memory corruption vulnerability in ICS-CERT Schneider Electric InduSoft Web Studio and InTouch Machine Edition, published on 18 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8840 and fix it if it is affected.\n\nWhat it is: CVE-2018-8840 is a critical memory corruption vulnerability in ICS-CERT Schneider Electric InduSoft Web Studio and InTouch Machine Edition, published on 18 Apr 2018. 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-2018-8840 in the wild and no public exploit code.\n\nAffected product: ICS-CERT Schneider Electric InduSoft Web Studio and InTouch Machine Edition. 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-2018-8840/ (Markdown: https://insights.sbomify.com/CVE-2018-8840/index.md)","id":"CVE-2018-8840","markdown":"https://insights.sbomify.com/CVE-2018-8840/index.md","name":"CVE-2018-8840","record":{"aliases":["GHSA-794x-w4ff-7p84"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"SCADA HMI software","requires_auth":"none","summary":"Remote attackers can achieve code execution in Schneider Electric InduSoft Web Studio and InTouch Machine Edition via crafted packets during tag or alarm actions.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"web_studio","vendor":"indusoft"},{"product":"intouch_machine_edition_2017","vendor":"industrial-software"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"A remote attacker could send a carefully crafted packet in InduSoft Web Studio v8.1 and prior versions, and/or InTouch Machine Edition 2017 v8.1 and prior versions during a tag, alarm, or event related action such as read and write, which may allow remote 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":"Memory corruption in Schneider Electric InduSoft Web Studio and InTouch Machine Edition","id":"CVE-2018-8840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2018"},"n_packages":0,"n_references":4,"next":{"headline":"Privilege escalation in WebAccess","id":"CVE-2018-8841"},"packages":[],"prev":{"headline":"Memory corruption in PMSoft","id":"CVE-2018-8839"},"products":["Schneider Electric InduSoft Web Studio and InTouch Machine Edition"],"published":"2018-04-18","related":[{"cvss_score":7.5,"headline":"InduSoft Web Studio NTWebServer Directory Traversal","id":"CVE-2014-0780","kev_date_added":"2022-04-15","published":"2014-04-25"},{"cvss_score":10,"headline":"Auth bypass in n/a","id":"CVE-2011-4051","kev_date_added":null,"published":"2011-12-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2011-0342","kev_date_added":null,"published":"2011-09-02"},{"cvss_score":10,"headline":"Path traversal in n/a","id":"CVE-2011-1900","kev_date_added":null,"published":"2011-05-04"},{"cvss_score":9.3,"headline":"Memory corruption in n/a","id":"CVE-2011-4052","kev_date_added":null,"published":"2011-12-05"},{"cvss_score":7.5,"headline":"Code injection in n/a","id":"CVE-2015-7374","kev_date_added":null,"published":"2015-09-25"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["ICS-CERT"]},"summary":"Remote attackers can achieve code execution in Schneider Electric InduSoft Web Studio and InTouch Machine Edition via crafted packets during tag or alarm actions.","url":"https://insights.sbomify.com/CVE-2018-8840/"}