{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-13365 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-13365 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-13365 is a high-severity vulnerability in n/a, published on 6 Aug 2020. 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-2020-13365 and fix it if it is affected.\n\nWhat it is: CVE-2020-13365 is a high-severity vulnerability in n/a, published on 6 Aug 2020. 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-2020-13365 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2020-13365/ (Markdown: https://insights.sbomify.com/CVE-2020-13365/index.md)","id":"CVE-2020-13365","markdown":"https://insights.sbomify.com/CVE-2020-13365/index.md","name":"CVE-2020-13365","record":{"aliases":["GHSA-355p-v284-v3xp"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Zyxel NAS devices","requires_auth":"none","summary":"A local binary allows non-root users to generate credentials for an undocumented root account, enabling full system compromise via Telnet.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nas326_firmware","vendor":"zyxel"},{"product":"nas520_firmware","vendor":"zyxel"},{"product":"nas540_firmware","vendor":"zyxel"},{"product":"nas542_firmware","vendor":"zyxel"}],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:N","version":"3.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"Certain Zyxel products have a locally accessible binary that allows a non-root user to generate a password for an undocumented user account that can be used for a TELNET session as root. This affects NAS520 V5.21(AASZ.4)C0, V5.21(AASZ.0)C0, V5.11(AASZ.3)C0, and V5.11(AASZ.0)C0; NAS542 V5.11(ABAG.0)C0, V5.20(ABAG.1)C0, and V5.21(ABAG.3)C0; NSA325 v2_V4.81(AALS.0)C0 and V4.81(AAAJ.1)C0; NSA310 4.22(AFK.0)C0 and 4.22(AFK.1)C0; NAS326 V5.21(AAZF.8)C0, V5.11(AAZF.4)C0, V5.11(AAZF.2)C0, and V5.11(AAZF.3)C0; NSA310S V4.75(AALH.2)C0; NSA320S V4.75(AANV.2)C0 and V4.75(AANV.1)C0; NSA221 V4.41(AFM.1)C0; and NAS540 V5.21(AATB.5)C0 and V5.21(AATB.3)C0.","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":"Privilege escalation in n/a","id":"CVE-2020-13365","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"File upload in n/a","id":"CVE-2020-13376"},"packages":[],"prev":{"headline":"A backdoor in certain Zyxel products allows remote TELNET access via a CGI script.","id":"CVE-2020-13364"},"products":["n/a"],"published":"2020-08-06","related":[{"cvss_score":9.8,"headline":"Zyxel Multiple NAS Devices Command Injection","id":"CVE-2023-27992","kev_date_added":"2023-06-23","published":"2023-06-19"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-6342","kev_date_added":null,"published":"2024-09-10"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-29972","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2024-29973","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"File upload in NAS326 firmware","id":"CVE-2024-29974","kev_date_added":null,"published":"2024-06-04"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2023-35138","kev_date_added":null,"published":"2023-11-30"},{"cvss_score":9.8,"headline":"Command injection in NAS326 firmware","id":"CVE-2023-4473","kev_date_added":null,"published":"2023-11-30"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"A local binary allows non-root users to generate credentials for an undocumented root account, enabling full system compromise via Telnet.","url":"https://insights.sbomify.com/CVE-2020-13365/"}