{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-1284 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1284 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1284 is a high-severity authentication bypass vulnerability in Cisco Catalyst Sd-Wan Manager, published on 6 May 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-1284 and fix it if it is affected.\n\nWhat it is: CVE-2021-1284 is a high-severity authentication bypass vulnerability in Cisco Catalyst Sd-Wan Manager, published on 6 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-1284 in the wild and no public exploit code.\n\nAffected product: Cisco Catalyst Sd-Wan Manager. 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-2021-1284/ (Markdown: https://insights.sbomify.com/CVE-2021-1284/index.md)","id":"CVE-2021-1284","markdown":"https://insights.sbomify.com/CVE-2021-1284/index.md","name":"CVE-2021-1284","record":{"aliases":["GHSA-5frf-w38r-8j6h"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"SD-WAN management software","requires_auth":"none","summary":"Unauthenticated adjacent attackers can bypass authentication to read and modify configurations in Cisco SD-WAN vManage systems.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"catalyst_sd-wan_manager","vendor":"cisco"},{"product":"sd-wan_vmanage","vendor":"cisco"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in the web-based messaging service interface of Cisco SD-WAN vManage Software could allow an unauthenticated, adjacent attacker to bypass authentication and authorization and modify the configuration of an affected system. To exploit this vulnerability, the attacker must be able to access an associated Cisco SD-WAN vEdge device. This vulnerability is due to insufficient authorization checks. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based messaging service interface of an affected system. A successful exploit could allow the attacker to gain unauthenticated read and write access to the affected vManage system. With this access, the attacker could access information about the affected vManage system, modify the configuration of the system, or make configuration changes to devices that are managed by the system.","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":"Cisco SD-WAN vManage Software Authentication Bypass Vulnerability","id":"CVE-2021-1284","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:catalyst_sd-wan_manager","products":["cisco:catalyst_sd-wan_manager"],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Multiple Cisco Products SNORT Ethernet Frame Decoder Denial of Service Vulnerability","id":"CVE-2021-1285"},"packages":[],"prev":{"headline":"Cisco Data Center Network Manager Information Disclosure Vulnerability","id":"CVE-2021-1283"},"products":["Cisco SD-WAN vManage"],"published":"2021-05-06","related":[{"cvss_score":10,"headline":"Cisco Catalyst SD-WAN Controller Authentication Bypass","id":"CVE-2026-20182","kev_date_added":"2026-05-14","published":"2026-05-14"},{"cvss_score":10,"headline":"Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass","id":"CVE-2026-20127","kev_date_added":"2026-02-25","published":"2026-02-25"},{"cvss_score":9.8,"headline":"Cisco Catalyst SD-WAN Manager Hex Encoding","id":"CVE-2026-76504","kev_date_added":"2026-09-30","published":"2026-09-30"},{"cvss_score":7.8,"headline":"Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output","id":"CVE-2026-20245","kev_date_added":"2026-06-09","published":"2026-06-04"},{"cvss_score":7.8,"headline":"Cisco SD-WAN Path Traversal","id":"CVE-2022-20775","kev_date_added":"2026-02-25","published":"2022-09-30"},{"cvss_score":7.5,"headline":"Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format","id":"CVE-2026-20128","kev_date_added":"2026-04-20","published":"2026-02-25"},{"cvss_score":6.5,"headline":"Cisco Catalyst SD-WAN Manager Directory or Path Traversal","id":"CVE-2026-20262","kev_date_added":"2026-06-15","published":"2026-06-15"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-08","vendors":["Cisco"]},"summary":"Unauthenticated adjacent attackers can bypass authentication to read and modify configurations in Cisco SD-WAN vManage systems.","url":"https://insights.sbomify.com/CVE-2021-1284/"}