{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20149 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20149 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20149 is a critical missing authorization vulnerability in Trendnet AC2600 TEW-827DRU, published on 30 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20149 and fix it if it is affected.\n\nWhat it is: CVE-2021-20149 is a critical missing authorization vulnerability in Trendnet AC2600 TEW-827DRU, published on 30 Dec 2021. 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-2021-20149 in the wild and no public exploit code.\n\nAffected product: Trendnet AC2600 TEW-827DRU. 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-2021-20149/ (Markdown: https://insights.sbomify.com/CVE-2021-20149/index.md)","id":"CVE-2021-20149","markdown":"https://insights.sbomify.com/CVE-2021-20149/index.md","name":"CVE-2021-20149","record":{"aliases":["GHSA-5rm5-xp9h-jf8q"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Trendnet wireless router","requires_auth":"none","summary":"Attackers can access internal services via IPv6 on the WAN interface because default firewall rules only restrict IPv4 traffic.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"tenable","cpe":[{"product":"tew-827dru_firmware","vendor":"trendnet"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices are accessible via the WAN interface via IPv6 by default.","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":"Missing authorization in Trendnet AC2600 TEW-827DRU","id":"CVE-2021-20149","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in Trendnet AC2600 TEW-827DRU","id":"CVE-2021-20150"},"packages":[],"prev":{"headline":"Information disclosure in ManageEngine ADSelfService Plus","id":"CVE-2021-20148"},"products":["Trendnet AC2600 TEW-827DRU"],"published":"2021-12-30","related":[{"cvss_score":10,"headline":"Command injection in n/a","id":"CVE-2024-28354","kev_date_added":null,"published":"2024-03-15"},{"cvss_score":10,"headline":"Auth bypass in Trendnet AC2600 TEW-827DRU","id":"CVE-2021-20151","kev_date_added":null,"published":"2021-12-30"},{"cvss_score":9.8,"headline":"Hardcoded credentials in Trendnet AC2600 TEW-827DRU","id":"CVE-2021-20155","kev_date_added":null,"published":"2021-12-30"},{"cvss_score":9.8,"headline":"Auth bypass in Trendnet AC2600 TEW-827DRU","id":"CVE-2021-20158","kev_date_added":null,"published":"2021-12-30"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-14080","kev_date_added":null,"published":"2020-06-15"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-13276","kev_date_added":null,"published":"2019-07-10"}],"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":["n/a"]},"summary":"Attackers can access internal services via IPv6 on the WAN interface because default firewall rules only restrict IPv4 traffic.","url":"https://insights.sbomify.com/CVE-2021-20149/"}