{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20694 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20694 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20694 is a high-severity authentication bypass vulnerability in D-Link Japan K.K. DAP-1880AC, published on 26 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20694 and fix it if it is affected.\n\nWhat it is: CVE-2021-20694 is a high-severity authentication bypass vulnerability in D-Link Japan K.K. DAP-1880AC, published on 26 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-20694 in the wild and no public exploit code.\n\nAffected product: D-Link Japan K.K. DAP-1880AC. 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-2021-20694/ (Markdown: https://insights.sbomify.com/CVE-2021-20694/index.md)","id":"CVE-2021-20694","markdown":"https://insights.sbomify.com/CVE-2021-20694/index.md","name":"CVE-2021-20694","record":{"aliases":["GHSA-q6x9-wmf8-g847"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"D-Link Wi-Fi extender","requires_auth":"low_privilege","summary":"Remote authenticated attackers can bypass access restrictions to enable telnet on D-Link DAP-1880AC devices, potentially leading to full system compromise.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"dap-1880ac_firmware","vendor":"dlink"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"Improper access control vulnerability in DAP-1880AC firmware version 1.21 and earlier allows a remote authenticated attacker to bypass access restriction and to start a telnet service via unspecified vectors.","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 DAP-1880AC","id":"CVE-2021-20694","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Security feature bypass in DAP-1880AC","id":"CVE-2021-20695"},"packages":[],"prev":{"headline":"Open redirect in Gurunavi App","id":"CVE-2021-20693"},"products":["DAP-1880AC"],"published":"2021-04-26","related":[{"cvss_score":9.8,"headline":"Missing authorization in DAP-1880AC","id":"CVE-2021-20697","kev_date_added":null,"published":"2021-04-26"},{"cvss_score":8.8,"headline":"Security feature bypass in DAP-1880AC","id":"CVE-2021-20695","kev_date_added":null,"published":"2021-04-26"},{"cvss_score":8.8,"headline":"Command injection in DAP-1880AC","id":"CVE-2021-20696","kev_date_added":null,"published":"2021-04-26"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["D-Link Japan K.K."]},"summary":"Remote authenticated attackers can bypass access restrictions to enable telnet on D-Link DAP-1880AC devices, potentially leading to full system compromise.","url":"https://insights.sbomify.com/CVE-2021-20694/"}