{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2021-20827 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20827 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20827 is a high-severity vulnerability in IDEC PLC, published on 24 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20827 and fix it if it is affected.\n\nWhat it is: CVE-2021-20827 is a high-severity vulnerability in IDEC PLC, published on 24 Dec 2021. 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-2021-20827 in the wild and no public exploit code.\n\nAffected product: IDEC PLC. 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-2021-20827/ (Markdown: https://insights.sbomify.com/CVE-2021-20827/index.md)","id":"CVE-2021-20827","markdown":"https://insights.sbomify.com/CVE-2021-20827/index.md","name":"CVE-2021-20827","record":{"aliases":["GHSA-hxfc-cc7r-hxxv"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"IDEC PLC","requires_auth":"none","summary":"Attackers can extract plaintext PLC credentials from backup files to hijack the PLC, manipulate outputs, or suspend operations.","user_interaction":"not_required","vuln_class":"hardcoded_credentials"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"data_file_manager","vendor":"idec"},{"product":"microsmart_fc6a_firmware","vendor":"idec"},{"product":"microsmart_plus_fc6a_firmware","vendor":"idec"},{"product":"windedit","vendor":"idec"},{"product":"windldr","vendor":"idec"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-312","name":"Cleartext Storage of Sensitive Information"}],"description":"Plaintext storage of a password vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the attacker may access the PLC Web server and hijack the PLC, and manipulation of the PLC output and/or suspension of the PLC may be conducted.","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":"Hardcoded credentials in IDEC PLC","id":"CVE-2021-20827","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in Order Status Batch Change Plug-in (for EC-CUBE 3.0 series)","id":"CVE-2021-20828"},"packages":[],"prev":{"headline":"Information disclosure in IDEC PLC","id":"CVE-2021-20826"},"products":["IDEC PLC"],"published":"2021-12-24","related":[{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2021-37400","kev_date_added":null,"published":"2021-12-28"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2021-37401","kev_date_added":null,"published":"2021-12-28"},{"cvss_score":7.6,"headline":"Information disclosure in IDEC PLC","id":"CVE-2021-20826","kev_date_added":null,"published":"2021-12-24"}],"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":"2024-08-03","vendors":["IDEC Corporation"]},"summary":"Attackers can extract plaintext PLC credentials from backup files to hijack the PLC, manipulate outputs, or suspend operations.","url":"https://insights.sbomify.com/CVE-2021-20827/"}