{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38434 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-38434 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-38434 is a high-severity vulnerability in FATEK Automation WinProladder, published on 18 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-38434 and fix it if it is affected.\n\nWhat it is: CVE-2021-38434 is a high-severity vulnerability in FATEK Automation WinProladder, published on 18 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-38434 in the wild and no public exploit code.\n\nAffected product: FATEK Automation WinProladder. 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-2021-38434/ (Markdown: https://insights.sbomify.com/CVE-2021-38434/index.md)","id":"CVE-2021-38434","markdown":"https://insights.sbomify.com/CVE-2021-38434/index.md","name":"CVE-2021-38434","record":{"aliases":["GHSA-rq4p-mwvq-fhvq"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PLC programming software","requires_auth":"none","summary":"Attackers can execute arbitrary code by tricking users into opening malicious project files in FATEK WinProladder due to improper sign extension handling.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"winproladder","vendor":"fatek"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-194","name":"Unexpected Sign Extension"}],"description":"FATEK Automation WinProladder versions 3.30 and prior lacks proper validation of user-supplied data when parsing project files, which could result in an unexpected sign extension. An attacker could leverage this vulnerability to execute arbitrary code.","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":"FATEK Automation WinProladder","id":"CVE-2021-38434","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"RTI Connext DDS Professional and Connext DDS Secure Incorrect Calculation of Buffer Size","id":"CVE-2021-38435"},"packages":[],"prev":{"headline":"RTI Connext DDS Professional and Connext DDS Secure Stack-based Buffer Overflow","id":"CVE-2021-38433"},"products":["WinProladder"],"published":"2021-10-18","related":[{"cvss_score":9.8,"headline":"Memory corruption in FATEK Automation WinProladder","id":"CVE-2021-32988","kev_date_added":null,"published":"2021-06-29"},{"cvss_score":9.8,"headline":"Memory corruption in FATEK Automation WinProladder","id":"CVE-2021-32990","kev_date_added":null,"published":"2021-06-29"},{"cvss_score":9.8,"headline":"Memory corruption in FATEK Automation WinProladder","id":"CVE-2021-32992","kev_date_added":null,"published":"2021-06-29"},{"cvss_score":7.8,"headline":"FATEK Automation WinProladder","id":"CVE-2021-43554","kev_date_added":null,"published":"2021-12-28"},{"cvss_score":7.8,"headline":"FATEK Automation WinProladder","id":"CVE-2021-43556","kev_date_added":null,"published":"2021-12-28"},{"cvss_score":7.8,"headline":"FATEK Automation WinProladder","id":"CVE-2021-38426","kev_date_added":null,"published":"2021-10-18"},{"cvss_score":7.8,"headline":"FATEK Automation WinProladder","id":"CVE-2021-38430","kev_date_added":null,"published":"2021-10-18"}],"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":["FATEK Automation"]},"summary":"Attackers can execute arbitrary code by tricking users into opening malicious project files in FATEK WinProladder due to improper sign extension handling.","url":"https://insights.sbomify.com/CVE-2021-38434/"}