{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-28501 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-28501 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-28501 is a critical authentication bypass vulnerability in Arista Networks Terminattr, published on 14 Jan 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-2021-28501 and fix it if it is affected.\n\nWhat it is: CVE-2021-28501 is a critical authentication bypass vulnerability in Arista Networks Terminattr, published on 14 Jan 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-2021-28501 in the wild and no public exploit code.\n\nAffected product: Arista Networks Terminattr. 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-2021-28501/ (Markdown: https://insights.sbomify.com/CVE-2021-28501/index.md)","id":"CVE-2021-28501","markdown":"https://insights.sbomify.com/CVE-2021-28501/index.md","name":"CVE-2021-28501","record":{"aliases":["GHSA-6m7h-74wg-gq59"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Arista EOS agent","requires_auth":"none","summary":"Local users with nopassword configuration can gain unrestricted device access due to incorrect AAA API usage in OpenConfig and TerminAttr agents.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Arista","cpe":[{"product":"terminattr","vendor":"arista"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"}],"description":"An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.","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 Terminattr","id":"CVE-2021-28501","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":"Auth bypass in Arista EOS","id":"CVE-2021-28503"},"packages":[],"prev":{"headline":"Auth bypass in Arista EOS","id":"CVE-2021-28500"},"products":["Terminattr"],"published":"2022-01-14","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":["Arista Networks"]},"summary":"Local users with nopassword configuration can gain unrestricted device access due to incorrect AAA API usage in OpenConfig and TerminAttr agents.","url":"https://insights.sbomify.com/CVE-2021-28501/"}