{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-36367 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-36367 is a high-severity authentication bypass vulnerability in n/a, published on 9 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-2021-36367 and fix it if it is affected.\n\nWhat it is: CVE-2021-36367 is a high-severity authentication bypass vulnerability in n/a, published on 9 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-2021-36367 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-2021-36367/ (Markdown: https://insights.sbomify.com/CVE-2021-36367/index.md)","id":"CVE-2021-36367","markdown":"https://insights.sbomify.com/CVE-2021-36367/index.md","name":"CVE-2021-36367","record":{"aliases":["ALPINE-CVE-2021-36367","DEBIAN-CVE-2021-36367","GHSA-wccm-6vx2-7p8c","UBUNTU-CVE-2021-36367"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"SSH client","requires_auth":"none","summary":"PuTTY allows malicious SSH servers to spoof authentication prompts, potentially capturing user credentials and leading to account takeover.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"putty","vendor":"putty"}],"cvss":{"score":8.1,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user).","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Auth bypass in n/a","id":"CVE-2021-36367","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":4,"next":{"headline":"Security feature bypass in n/a","id":"CVE-2021-36368"},"packages":[],"prev":{"headline":"Nagios XI before 5.8.5 incorrectly allows manage_services.sh wildcards.","id":"CVE-2021-36366"},"products":["n/a"],"published":"2021-07-09","related":[{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2004-1008","kev_date_added":null,"published":"2004-12-01"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2019-17067","kev_date_added":null,"published":"2019-10-01"},{"cvss_score":7.8,"headline":"Other in n/a","id":"CVE-2016-6167","kev_date_added":null,"published":"2017-01-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2021-33500","kev_date_added":null,"published":"2021-05-21"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2005-0467","kev_date_added":null,"published":"2005-02-21"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2004-1440","kev_date_added":null,"published":"2005-02-13"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"PuTTY allows malicious SSH servers to spoof authentication prompts, potentially capturing user credentials and leading to account takeover.","url":"https://insights.sbomify.com/CVE-2021-36367/"}