{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27663 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27663 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27663 is a high-severity missing authorization vulnerability in Johnson Controls CEM Systems AC2000, published on 30 Aug 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-2021-27663 and fix it if it is affected.\n\nWhat it is: CVE-2021-27663 is a high-severity missing authorization vulnerability in Johnson Controls CEM Systems AC2000, published on 30 Aug 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-2021-27663 in the wild and no public exploit code.\n\nAffected product: Johnson Controls CEM Systems AC2000. 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-2021-27663/ (Markdown: https://insights.sbomify.com/CVE-2021-27663/index.md)","id":"CVE-2021-27663","markdown":"https://insights.sbomify.com/CVE-2021-27663/index.md","name":"CVE-2021-27663","record":{"aliases":["GHSA-7w94-337p-g84p"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Access Control System","requires_auth":"none","summary":"Remote attackers can bypass authorization to access the CEM Systems AC2000 access control system without proper credentials.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jci","cpe":[{"product":"ac2000_firmware","vendor":"johnsoncontrols"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"}],"description":"A vulnerability in versions 10.1 through 10.5 of Johnson Controls CEM Systems AC2000 allows a remote attacker to access to the system without adequate authorization. This issue affects: Johnson Controls CEM Systems AC2000 10.1; 10.2; 10.3; 10.4; 10.5.","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":"CEM Systems AC2000","id":"CVE-2021-27663","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"exacqVision Web Service","id":"CVE-2021-27664"},"packages":[],"prev":{"headline":"KT-1 Capture-replay","id":"CVE-2021-27662"},"products":["CEM Systems AC2000"],"published":"2021-08-30","related":[],"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":"2024-09-17","vendors":["Johnson Controls"]},"summary":"Remote attackers can bypass authorization to access the CEM Systems AC2000 access control system without proper credentials.","url":"https://insights.sbomify.com/CVE-2021-27663/"}