{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20783 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20783 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20783 is a high-severity vulnerability in SoftBank Optical BB unit E-WMTA2.3, published on 28 Jul 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-2021-20783 and fix it if it is affected.\n\nWhat it is: CVE-2021-20783 is a high-severity vulnerability in SoftBank Optical BB unit E-WMTA2.3, published on 28 Jul 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-2021-20783 in the wild and no public exploit code.\n\nAffected product: SoftBank Optical BB unit E-WMTA2.3. 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-2021-20783/ (Markdown: https://insights.sbomify.com/CVE-2021-20783/index.md)","id":"CVE-2021-20783","markdown":"https://insights.sbomify.com/CVE-2021-20783/index.md","name":"CVE-2021-20783","record":{"aliases":["GHSA-m9rh-6hgx-mg26"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Optical BB unit","requires_auth":"none","summary":"A CSRF vulnerability allows remote attackers to hijack administrator sessions on SoftBank Optical BB units via crafted pages.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"optical_bb_unit_e-wmta_firmware","vendor":"softbank"}],"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 Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.","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 Optical BB unit E-WMTA2.3","id":"CVE-2021-20783","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in Everything","id":"CVE-2021-20784"},"packages":[],"prev":{"headline":"Cross-site request forgery in Software License Manager","id":"CVE-2021-20782"},"products":["Optical BB unit E-WMTA2.3"],"published":"2021-07-28","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":["SoftBank"]},"summary":"A CSRF vulnerability allows remote attackers to hijack administrator sessions on SoftBank Optical BB units via crafted pages.","url":"https://insights.sbomify.com/CVE-2021-20783/"}