{"answers":{"affected":"It affects 20 products.","exploited":"There is no known exploitation of CVE-2021-32986 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-32986 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-32986 is a critical authentication bypass vulnerability in Automation Direct CLICK PLC CPU Modules: C0-1x CPUs, published on 4 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32986 and fix it if it is affected.\n\nWhat it is: CVE-2021-32986 is a critical authentication bypass vulnerability in Automation Direct CLICK PLC CPU Modules: C0-1x CPUs, published on 4 Apr 2022. 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-2021-32986 in the wild and no public exploit code.\n\nAffected product: Automation Direct CLICK PLC CPU Modules: C0-1x CPUs. 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-2021-32986/ (Markdown: https://insights.sbomify.com/CVE-2021-32986/index.md)","id":"CVE-2021-32986","markdown":"https://insights.sbomify.com/CVE-2021-32986/index.md","name":"CVE-2021-32986","record":{"aliases":["GHSA-j37w-8jcg-6mcp"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["privilege_escalation","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC CPU Module","requires_auth":"none","summary":"Attackers can modify PLC logic without authorization if the device remains unlocked after an interrupted session, requiring a power cycle to relock.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"c0-10are-d_firmware","vendor":"automationdirect"},{"product":"c0-10dd1e-d_firmware","vendor":"automationdirect"},{"product":"c0-10dd2e-d_firmware","vendor":"automationdirect"},{"product":"c0-10dre-d_firmware","vendor":"automationdirect"},{"product":"c0-11are-d_firmware","vendor":"automationdirect"},{"product":"c0-11dd1e-d_firmware","vendor":"automationdirect"},{"product":"c0-11dd2e-d_firmware","vendor":"automationdirect"},{"product":"c0-11dre-d_firmware","vendor":"automationdirect"},{"product":"c0-12are-1-d_firmware","vendor":"automationdirect"},{"product":"c0-12are-2-d_firmware","vendor":"automationdirect"},{"product":"c0-12are-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd1e-1-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd1e-2-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd1e-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd2e-1-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd2e-2-d_firmware","vendor":"automationdirect"},{"product":"c0-12dd2e-d_firmware","vendor":"automationdirect"},{"product":"c0-12dre-1-d_firmware","vendor":"automationdirect"},{"product":"c0-12dre-2-d_firmware","vendor":"automationdirect"},{"product":"c0-12dre-d_firmware","vendor":"automationdirect"}],"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-863","name":"Incorrect Authorization"},{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"}],"description":"After Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, the unlocked state does not timeout. If the programming software is interrupted, the PLC remains unlocked. All subsequent programming connections are allowed without authorization. The PLC is only relocked by a power cycle, or when the programming software disconnects correctly.","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":"Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2021-32986","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"AVEVA SuiteLink Server Null Pointer Dereference","id":"CVE-2021-32987"},"packages":[],"prev":{"headline":"AVEVA System Platform Origin Validation Error","id":"CVE-2021-32985"},"products":["CLICK PLC CPU Modules: C0-1x CPUs"],"published":"2022-04-04","related":[{"cvss_score":9.8,"headline":"Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2021-32980","kev_date_added":null,"published":"2022-04-04"},{"cvss_score":9.8,"headline":"Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2021-32984","kev_date_added":null,"published":"2022-04-04"},{"cvss_score":7.5,"headline":"Automation Direct CLICK PLC CPU Modules Plaintext Storage of a Password","id":"CVE-2021-32978","kev_date_added":null,"published":"2022-04-04"},{"cvss_score":7.5,"headline":"Automation Direct CLICK PLC CPU Modules Cleartext Transmission of Sensitive Information","id":"CVE-2021-32982","kev_date_added":null,"published":"2022-04-04"}],"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":"2025-04-16","vendors":["Automation Direct"]},"summary":"Attackers can modify PLC logic without authorization if the device remains unlocked after an interrupted session, requiring a power cycle to relock.","url":"https://insights.sbomify.com/CVE-2021-32986/"}