{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-20776 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20776 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20776 is a critical authentication bypass vulnerability in A-Stage Inc. SCT-40CM01SR and AT-40CM01SR, published on 7 Jul 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-2021-20776 and fix it if it is affected.\n\nWhat it is: CVE-2021-20776 is a critical authentication bypass vulnerability in A-Stage Inc. SCT-40CM01SR and AT-40CM01SR, published on 7 Jul 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-2021-20776 in the wild and no public exploit code.\n\nAffected product: A-Stage Inc. SCT-40CM01SR and AT-40CM01SR. 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-2021-20776/ (Markdown: https://insights.sbomify.com/CVE-2021-20776/index.md)","id":"CVE-2021-20776","markdown":"https://insights.sbomify.com/CVE-2021-20776/index.md","name":"CVE-2021-20776","record":{"aliases":["GHSA-38wv-982m-4q6p"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"A-Stage security camera","requires_auth":"none","summary":"Attackers can bypass authentication to execute arbitrary commands via telnet on A-Stage security cameras.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"at-40cm01sr_firmware","vendor":"a-stage-inc"},{"product":"sct-40cm01sr_firmware","vendor":"a-stage-inc"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","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-287","name":"Improper Authentication"}],"description":"Improper authentication vulnerability in SCT-40CM01SR and AT-40CM01SR allows an attacker to bypass access restriction and execute an arbitrary command via telnet.","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":"Auth bypass in SCT-40CM01SR and AT-40CM01SR","id":"CVE-2021-20776","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":"Missing authorization in GU App for Android","id":"CVE-2021-20777"},"packages":[],"prev":{"headline":"Missing authorization in Cybozu Garoon","id":"CVE-2021-20775"},"products":["SCT-40CM01SR and AT-40CM01SR"],"published":"2021-07-07","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":"2024-08-03","vendors":["A-Stage Inc."]},"summary":"Attackers can bypass authentication to execute arbitrary commands via telnet on A-Stage security cameras.","url":"https://insights.sbomify.com/CVE-2021-20776/"}