{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-20621 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20621 is a high-severity vulnerability in NEC Corporation Aterm WG2600HP and Aterm WG2600HP2, published on 28 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-20621 and fix it if it is affected.\n\nWhat it is: CVE-2021-20621 is a high-severity vulnerability in NEC Corporation Aterm WG2600HP and Aterm WG2600HP2, published on 28 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-20621 in the wild and no public exploit code.\n\nAffected product: NEC Corporation Aterm WG2600HP and Aterm WG2600HP2. 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-2021-20621/ (Markdown: https://insights.sbomify.com/CVE-2021-20621/index.md)","id":"CVE-2021-20621","markdown":"https://insights.sbomify.com/CVE-2021-20621/index.md","name":"CVE-2021-20621","record":{"aliases":["GHSA-6r2v-76j8-x9vv"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"NEC Aterm router","requires_auth":"none","summary":"Remote attackers can hijack administrator authentication on NEC Aterm routers via CSRF, potentially taking over the device.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"wg2600hp2_firmware","vendor":"aterm"},{"product":"wg2600hp_firmware","vendor":"aterm"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"Cross-site request forgery (CSRF) vulnerability in Aterm WG2600HP firmware Ver1.0.2 and earlier, and Aterm WG2600HP2 firmware Ver1.0.2 and earlier allows remote attackers to hijack the authentication of administrators 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":"Cross-site request forgery in Aterm WG2600HP and Aterm WG2600HP2","id":"CVE-2021-20621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in Aterm WG2600HP and Aterm WG2600HP2","id":"CVE-2021-20622"},"packages":[],"prev":{"headline":"Cross-site scripting in Aterm WF800HP","id":"CVE-2021-20620"},"products":["Aterm WG2600HP and Aterm WG2600HP2"],"published":"2021-01-28","related":[{"cvss_score":7.5,"headline":"Missing authorization in n/a","id":"CVE-2017-12575","kev_date_added":null,"published":"2018-08-24"},{"cvss_score":6.1,"headline":"Cross-site scripting in Aterm WG2600HP and Aterm WG2600HP2","id":"CVE-2021-20622","kev_date_added":null,"published":"2021-01-28"}],"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":["NEC Corporation"]},"summary":"Remote attackers can hijack administrator authentication on NEC Aterm routers via CSRF, potentially taking over the device.","url":"https://insights.sbomify.com/CVE-2021-20621/"}